Space between caption and subfigure

I would like to increase the space between each subcaption of subfigure.
Here, I present the code of my figure:

  begin{figure}[!htb]
centering
subfigure[Solution 1 -- $y_1$ is optimized first]{
label{Mosaics1}
scalebox{0.8}{
begin{tabular}{|
>{columncolor[HTML]{EDEDED}}c |c|c|cc|c|c|
>{columncolor[HTML]{DDEBF7}}c |ll}
cline{1-8}
cellcolor[HTML]{A5A5A5}Apr. & cellcolor[HTML]{A5A5A5}May & cellcolor[HTML]{A5A5A5}Jun. & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Jul.} & cellcolor[HTML]{A5A5A5}Aug. & cellcolor[HTML]{A5A5A5}Sep. & cellcolor[HTML]{A5A5A5}Oct. & cellcolor[HTML]{A5A5A5}Nov. &  & cellcolor[HTML]{FCE4D6}Farm 1: $1-5$  cline{1-8}
(7,1,124.61) & cellcolor[HTML]{EDEDED}(6,3,96.83) & cellcolor[HTML]{FCE4D6}(3,1,125.20) & multicolumn{1}{c|}{cellcolor[HTML]{FCE4D6}(5,1,231.00)} & cellcolor[HTML]{FCE4D6}(2,1,231.36) & cellcolor[HTML]{FCE4D6}(4,1,128.11) & cellcolor[HTML]{FCE4D6}(1,1,277.68) & (19,1,148.16) &  & cellcolor[HTML]{EDEDED}Farm 2: $6-10$  cline{2-7}
(9,1,195.95) & cellcolor[HTML]{DDEBF7}(14,1,190.27) & cellcolor[HTML]{DDEBF7}(20,1,253.24) & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(12,1,244.20)} & cellcolor[HTML]{DDEBF7}(11,1,231.00) & cellcolor[HTML]{DDEBF7}(16,4,45.16) & cellcolor[HTML]{DDEBF7}(15,5,44.46) & (13,1,144.52) &  & cellcolor[HTML]{DDEBF7}Farm 3: $11-20$  cline{2-5} cline{7-7}
(10,1,138.95) & cellcolor[HTML]{E2EFDA}(24,1,210.56) & cellcolor[HTML]{EDEDED}(8,1,125.72) & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(23,8,45.39)} & cellcolor[HTML]{E2EFDA}(22,8,37.47) & cellcolor[HTML]{DDEBF7}(17,1,212.31) & cellcolor[HTML]{FFE699}(27,1,356.20) & (18,1,141.13) &  & cellcolor[HTML]{E2EFDA}Farm 4: $21-26$  cline{1-8}
cellcolor[HTML]{E2EFDA}(21,2,190.78) & cellcolor[HTML]{E2EFDA}(26,1,225.36) & cellcolor[HTML]{E2EFDA}(25,8,38.09) &  &  & cellcolor[HTML]{FFE699}(29,2,160.48) & cellcolor[HTML]{FFE699}(28,1,281.15) & cellcolor[HTML]{FFE699}(30,2,211.50) &  & cellcolor[HTML]{FFE699}Farm 5: $27-30$  cline{1-3} cline{6-8} 

end{tabular}}

}qquad
subfigure[Solution 2 -- $y_2$ is optimized first]{
scalebox{0.8}{
label{Mosaics2}
begin{tabular}{c|
>{columncolor[HTML]{FCE4D6}}c |ccccccll}
cline{1-8}
multicolumn{1}{|c|}{cellcolor[HTML]{A5A5A5}Apr.} & cellcolor[HTML]{A5A5A5}May & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Jun.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Jul.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Aug.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Sep.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Oct.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Nov.} &  & cellcolor[HTML]{FCE4D6}Farm 1: $1-5$  cline{1-8}
multicolumn{1}{|c|}{cellcolor[HTML]{FCE4D6}(1,1,225.79)} & (3,1,127.69) & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(14,1,267.51)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(11,2,64.43)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(12,5,35.21)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(17,1,165.25)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(6,1,268.91)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(7,1,123.29)} &  & cellcolor[HTML]{EDEDED}Farm 2: $6-10$ 
multicolumn{1}{|c|}{cellcolor[HTML]{FCE4D6}(2,2,103.13)} & (4,1,179.98) & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(15,5,38.64)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(13,1,229.71)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(20,1,218.95)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(18,4,50.39)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(10,1,168.72)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(8,1,137.81)} &  & cellcolor[HTML]{DDEBF7}Farm 3: $11-20$  cline{1-1} cline{3-3} cline{5-5} cline{7-7}
multicolumn{1}{|c|}{cellcolor[HTML]{E2EFDA}(22,4,83.62)} & (5,1,155.76) & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(21,4,113.48)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(16,3,64.08)} & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(23,4,101.71)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(19,1,138.84)} & multicolumn{1}{c|}{cellcolor[HTML]{FFE699}(28,2,101.36)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(9,1,244.94)} &  & cellcolor[HTML]{E2EFDA}Farm 4: $21-26$  cline{1-6} cline{8-8}
 & cellcolor[HTML]{E2EFDA}(24,2,105.86) & multicolumn{1}{c|}{} & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(25,4,70.86)} & multicolumn{1}{c|}{} & multicolumn{1}{c|}{cellcolor[HTML]{FFE699}(29,2,146.20)} & multicolumn{1}{c|}{cellcolor[HTML]{FFE699}(30,2,215.88)} & multicolumn{1}{c|}{cellcolor[HTML]{FFE699}(27,4,78.20)} &  & cellcolor[HTML]{FFE699}Farm 5: $27-30$  cline{2-2} cline{4-4} cline{6-8}
multicolumn{1}{l|}{} & multicolumn{1}{l|}{cellcolor[HTML]{E2EFDA}(26,2,125.53)} & multicolumn{1}{l}{} & multicolumn{1}{l}{} & multicolumn{1}{l}{} & multicolumn{1}{l}{} & multicolumn{1}{l}{} & multicolumn{1}{l}{} &  &   cline{2-2}
end{tabular}
}
}
qquad
subfigure[Solution 3 -- $y_3$ is optimized first]{
label{Mosaics3}
scalebox{0.8}{
begin{tabular}{ccc|c|ccccll}
cline{1-8}
multicolumn{1}{|c|}{cellcolor[HTML]{A5A5A5}Apr.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}May} & cellcolor[HTML]{A5A5A5}Jun. & cellcolor[HTML]{A5A5A5}Jul. & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Aug.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Sep.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Oct.} & multicolumn{1}{c|}{cellcolor[HTML]{A5A5A5}Nov.} &  & cellcolor[HTML]{FCE4D6}Farm 1: $1-5$  cline{1-8}
multicolumn{1}{|c|}{cellcolor[HTML]{FCE4D6}(1,1,225.79)} & multicolumn{1}{c|}{cellcolor[HTML]{FCE4D6}(2,2,119.17)} & cellcolor[HTML]{FCE4D6}(5,1,155.61) & cellcolor[HTML]{FCE4D6}(4,1,186.69) & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(6,1,313.93)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(8,1,176.58)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(9,1,250.80)} & multicolumn{1}{c|}{cellcolor[HTML]{EDEDED}(10,1,173.52)} &  & cellcolor[HTML]{EDEDED}Farm 2: $6-10$  cline{2-8}
multicolumn{1}{|c|}{cellcolor[HTML]{FCE4D6}(3,1,110.51)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(11,1,208.55)} & cellcolor[HTML]{DDEBF7}(20,1,273.68) & cellcolor[HTML]{EDEDED}(7,1,125.78) & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(12,1,263.44)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(18,1,147.12)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(15,2,123.75)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(13,1,122.75)} &  & cellcolor[HTML]{DDEBF7}Farm 3: $11-20$  cline{1-5} cline{7-7}
multicolumn{1}{|c|}{cellcolor[HTML]{DDEBF7}(17,1,185.26)} & multicolumn{1}{c|}{cellcolor[HTML]{FFE699}(29,1,323.59)} & cellcolor[HTML]{E2EFDA}(23,1,278.50) & cellcolor[HTML]{DDEBF7}(16,1,141.37) & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(21,1,378.44)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(19,1,138.84)} & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(26,1,293.84)} & multicolumn{1}{c|}{cellcolor[HTML]{DDEBF7}(14,1,171.37)} &  & cellcolor[HTML]{E2EFDA}Farm 4: $21-26$  cline{1-8}
multicolumn{1}{|c|}{cellcolor[HTML]{FFE699}(30,1,382.24)} & multicolumn{1}{c|}{} & cellcolor[HTML]{FFE699}(27,1,350.39) & cellcolor[HTML]{E2EFDA}(24,1,226.35) & multicolumn{1}{c|}{} & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(25,1,376.25)} & multicolumn{1}{c|}{} & multicolumn{1}{c|}{cellcolor[HTML]{E2EFDA}(22,1,352.87)} &  & cellcolor[HTML]{FFE699}Farm 5: $27-30$  cline{1-1} cline{3-4} cline{6-6} cline{8-8}
multicolumn{1}{l}{} & multicolumn{1}{l}{} & multicolumn{1}{l|}{} & multicolumn{1}{l|}{cellcolor[HTML]{FFE699}(28,1,283.44)} & multicolumn{1}{l}{} & multicolumn{1}{l}{} & multicolumn{1}{l}{} & multicolumn{1}{l}{} &  &   cline{4-4}
end{tabular}}
}
qquad
subfigure[Solution 4 -- compromise between all objectives]{
scalebox{0.8}{
label{Mosaics4}
begin{tabular}{|
>{columncolor[HTML]{EDEDED}}c |c|c|c|c|c|c|c|ll}
cline{1-8}
cellcolor[HTML]{A5A5A5}Apr. & cellcolor[HTML]{A5A5A5}May & cellcolor[HTML]{A5A5A5}Jun. & cellcolor[HTML]{A5A5A5}Jul. & cellcolor[HTML]{A5A5A5}Aug. & cellcolor[HTML]{A5A5A5}Sep. & cellcolor[HTML]{A5A5A5}Oct. & cellcolor[HTML]{A5A5A5}Nov. &  & cellcolor[HTML]{FCE4D6}Farm 1: $1-5$  cline{1-8}
(6,1,251.38) & cellcolor[HTML]{EDEDED}(9,2,113.21) & cellcolor[HTML]{EDEDED}(8,2,79.77) & cellcolor[HTML]{DDEBF7}(11,1,231.00) & cellcolor[HTML]{FCE4D6}(2,1,240.22) & cellcolor[HTML]{FCE4D6}(3,1,123.49) & cellcolor[HTML]{FCE4D6}(1,2,128.44) & cellcolor[HTML]{DDEBF7}(19,1,173.87) &  & cellcolor[HTML]{EDEDED}Farm 2: $6-10$  cline{2-3} cline{5-5} cline{7-7}
(7,1,124.61) & cellcolor[HTML]{DDEBF7}(14,1,190.27) & cellcolor[HTML]{DDEBF7}(12,1,215.62) & cellcolor[HTML]{DDEBF7}(17,1,227.84) & cellcolor[HTML]{DDEBF7}(5,1,142.82) & cellcolor[HTML]{FCE4D6}(4,1,208.55) & cellcolor[HTML]{DDEBF7}(18,2,132.00) & cellcolor[HTML]{DDEBF7}(20,1,163.73) &  & cellcolor[HTML]{DDEBF7}Farm 3: $11-20$  cline{2-2} cline{4-4} cline{6-8}
(10,1,127.51) & cellcolor[HTML]{E2EFDA}(24,1,210.56) & cellcolor[HTML]{DDEBF7}(16,1,137.94) & cellcolor[HTML]{E2EFDA}(23,1,363.13) & cellcolor[HTML]{DDEBF7}(13,1,154.38) & cellcolor[HTML]{DDEBF7}(15,2,90.67) & cellcolor[HTML]{FFE699}(27,1,356.20) & cellcolor[HTML]{FFE699}(28,1,282.30) &  & cellcolor[HTML]{E2EFDA}Farm 4: $21-26$  cline{1-1} cline{3-7}
cellcolor[HTML]{E2EFDA}(21,1,383.12) & cellcolor[HTML]{E2EFDA}(26,1,225.36) & cellcolor[HTML]{E2EFDA}(25,2,169.28) &  & cellcolor[HTML]{E2EFDA}(22,1,299.77) & cellcolor[HTML]{FFE699}(29,1,320.96) &  & cellcolor[HTML]{FFE699}(30,1,380.70) &  & cellcolor[HTML]{FFE699}Farm 5: $27-30$  cline{1-3} cline{5-6} cline{8-8}
end{tabular}}
}
caption{Scheme for four different solutions determined in the instance with 30 plots}
label{Mosaics}
end{figure} 

(the packages usepackage{subfigure}, usepackage[table,xcdraw]{xcolor} are necessary here)
and the output generated:

Anyone can help me please?