Marcus (color) Update

Here is the digital/colored version of Marcus. I know that the jacket is not like the colors I originally said in his Bio. But, I like how the jacket colors turned out. This was also the first time I took shading... seriously I guess. Anyway I would like to know what you guys think. Overall I like how he turned out. Also I did most of the lines and colors in Illustrator and then I did the shading in Photoshop.

His weapons: drale251.deviantart.com/art/Se…
His bio: drale251.deviantart.com/art/Ma…
Original sketch: drale251.deviantart.com/art/Ma…
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Update: I added some more shading/lighting and I changed the background color.