I totally made him an 80s wrestler,
EDIT, BROTHER

Worked on making the musculature less "ball-and-joint" like, specifically the delts and biceps.
Avoided defining everything with 1px lines. Both to moderate success.
The stance is also a bit forward-leaning now.
That third level of shading (or the musculature it suggests) on the left leg seems misplaced/overexposed.
Boots refined, but their suggested construction seems wonky up close.
Left forearm too curved. Right forearm should be longer.
Cranium squashed by 1px, but the head's a gag anyway.
To be edited...