I'm not home to check my figure right now but I have 2 guesses that come to mind. 1. Pull the arms back out, is there a central part between the torso and the arm that can be independently rotated at both ends that may be rotated wrong when yours was assembled? 2. Another possibility is some part that should be unique right and left may have been assembled on the wrong sides. Since the arms do line up with each other I would assume it isn't a duplicate part where you have both right arm or both left arm parts.