>>936302818
Your drawing kind of feels like the drawing on the left, check out this link.
>http://www.floobynooby.com/ICAN3211/11Soliddrawing.html
Also, the left arm (and fingers as well) looks the same with no major perspective differences throughout the turns. Some more use of foreshortening for the first and then elongating the arm for the other two or making the hand look further up on the belly would help sell the perspective a little better imo