Anatomically speaking, those arms are quite off. Either he has his elbows at about 2/3rds down his arms, or he's suffering from some nasty fractures in his lower arms.
He seems to have no left wrist (our right), as his lower arm goes straight to the hand without noticeable thinning. The higher part of his lower left (again, our right) arm also happens to be thicker than the part of his upper arm just above the elbow.