Muscular (thicker) is the least issue- its much too long - especially the upper arm - just compare how low the elbow is to her left elbow - if she straightened it it would be at her belt level - way lower than the other.
Also - there are plenty of self taught artists who can draw figures amazingly well and accurate I'm sure - but the opposite isn't gonna be true very often is it? If you HAVE had formal art training, (beyond compulsory high school level) which would include learning how to draw figures - its a safe bet you wont make simple proportion mistakes.
last edited at Feb 15, 2015 3:21AM