The colors are spot on for the gameboy and red version. But you need to smooth everything. The cartridge doesn't looked beveled or smoothed and I can see polygons on all the edged of the gameboy. You should go back and add edge loops and smooth rather than bevel because you wont be able to see ANY edges and it will look may more realistic. Also I think that the plastic should have just a little bit of noise in it to give it a a plastic look.