How do I install my new ceiling light fixture?

Hi I’d like to install a new light fixture. The fixture is made out of plastic and has a blue and a brown cable.

The image is of the old fixture that works.

In case the image isn’t clear enough – The wires coming out of the ceiling consist of two black wires on the left hand side, then two red wires which are held together and two copper wires on the right hand side which are also held together

How would I install the new fixture?