yah somehow i've noticed that before....but when i start fixing the arm i dont know why its not proportion enough.maybe it's too short(right arm)or too small. anyway,thanks alot for the comment my friend. at least i know my mistake. it's really good thing to hear some comment from a fellow DA member. cheers!
No prob man; I know if I make a mistake or two in a pic I'd like for someone to point it out and it's true artists tend to notice that in their own stuff before anyone else. But perspective drawings are some of the most difficult to do no matter how good u are, especially w/o references :S.