Sorry to say this, but while I like the statue conversion, I'm not liking the model. :/
I'll help in whatever I can to make it better, but since this is the model that will be in the game, I don't think fixing the statue in Photoshop is the best thing to do.
The shoulders are MASSIVE, and so are the forearms and fists.
The whole abdomen is way too muscular and too wide. Notice there's also a place above his waist that is thinner than the waist itself. His ribcage is also nowhere to be seen.
His sternum seems sunken. His clavicles should be horizontal. Them being sloped inwards makes it seem like he is sinking his chest.
His chest should transition seamlessly into the shoulders.
The face is too small.
The pants' legs' width goes down pretty much unchanged until well below the knee, where they abruptly get thin.
In the original, the pants get progressively thin right from the top, without changing suddenly at any particular point.
Also the pants are too low.
I'll make a mockup of what I think needs changing and upload it in an hour or so.