My thoughts on the art.
1. Design and style. It has a interesting style like a pacman world style. But more realistic. I find it weird that the boots Are as high as pacman. Just a little thing I thought was weird.
2. Color. Need I explain? It's his main colors, would be better with blending and shading.
3 Other Details. It looks good and you did well. Just some color correction and that's about it.
In total. 3.5* it's good and all. But does need shading and blending. Then it would look really good. And ever frontpage!