Try upping the contrast on this guy- and eliminating at least some of the highlight colour. 
I don't exactly get that since for me there are no highlights colours, and if you mean the bright greenish colour I don't really see why I should remove it, could you maybe explain it more?
@Blick: That was the problem that I had with the arms, that they overlapped the legs. In the uncoloured version it looked already pretty hunched to me so I did not see it but I get your point. Although I am not gonna change it because that means indeed changing every frame. Still there's a red lizard dude I want to make for the mockup, I can make him hunched more though. Thanks for pointing me out

Nontheless here's a slightly edit:
Old ---> New
