Using eso-pic to add a watermark text in front of everything

I’m trying to get a very simple watermark/draft text spanning my latex file pages.

I was using draftwatermark package but after I needed it to stay on top of some plot images I have, so i tried xwatermark but it doesn’t work on latest TinyTeX version anymore

Now I’m trying to make it work with eso-pic by just copying examples online, this is what I have so far :

documentclass[11pt]{article}        
usepackage[margin=1.0in]{geometry}   
usepackage{moreverb}                
usepackage{url}                      
usepackage{amssymb}                  
usepackage[pdftex]{lscape}           
usepackage{longtable}                
usepackage{helvet}
usepackage{lastpage}                
usepackage{parskip}                  
usepackage[toc,page]{appendix}       
usepackage{hyphenat}                 
usepackage{eso-pic}
usepackage{xcolor}
    
AddToShipoutPicture{%
  AtTextCenter{%
    raisebox{3baselineskip}{%
      rotatebox[origin=c]{45}{%
        color{red} Preview
      }%
    }%
  }%
}%

So far what I’m missing :

1. The text should be bigger but without changing the fontsize of my whole document, how can I do this? I want it the width of the document
2. It is still behind my image plot, I even tried -/height as I’ve seen online but same problem!