Having checked out your other work on Newgrounds, I really like your style and your shading is excellent. I find myself a little distracted when I look at this picture because I see Brock Lesnar (middle) and Chris Evans (right)... and it might be Hugh Jackman (left). The only other thing I would advise is to try and keep the tone of the colours the same when painting multiple characters. It is only very slight, and the one on the far left fits is perfectly, but I feel the one on the far right stands out a bit more and doesn't look entirely like he is standing in the room as much as the other two do ( I hope that makes sense) - perhaps he is too well lit/not as much contrast in the shading. Lastly, I really like the background you chose - it works really well and fits with the game. All the best!