Turbo: this is as far I am going to go with tweaking the anatomy I think. This isn't an anatomy study, body language is paramount and therefore I enjoy the slightly Klimtian distended limbs. However that arm rotation was indeed wrong and I tried to address this without two drastic jumps towards superhero-arm-definitions. How do you think it worked?
All good, you could go even further in reducing muscle definition and mass. Although it's not very clear what the dark lines are near the lighter areas of the biceps and deltoid. Scars? "Stylish" shading?
His left shoulder and arm should be sent a bit further to the background by means of darkening its shades. Also, i think the shoulder should be placed at an above spot.
An edit where i try to go closer to your original sketch, and bring out more that subtle emotion you put in the eyes, while keeping it subtly. Also, shoulder/arm crit.

I still enjoy the rendering and coloring on the pants most on the piece

The boots also look stylish, with the red engravings (don't know a better term for the red pattern thing).
Just a tip: given the extreme-ish perspective on the lower body, the upper body could follow it as well, seems to follow different perspective. You could try changing the head perspective in a way we'd almost see the underneath of his jaw (yeah, pretty extreme change that would be!).
johny's palette edit looks interesting, and the background becomes more readable.