>>2467206The biggest critique I can make about your art is that the musculature and proportions are "off" in a lot of ways.
For example, in this picture the bottom has his left arm going straight down and the top is clearly grasping on that strap, yet the top's bicep isn't flexing at all, it's just flat against his arm like the bottom's is.
>>2467318Here the smaller guy's upper arms are very long, but his forearms are short, when it should be proportionally the opposite. Also the larger guy's obliques are placed too high up and near his armpit.
I don't want to sound like I'm being overly critical, your art's definitely solid all around, just trying to give critiques since they were requested in the OP.