Yeah, good art. Ignore the jokers talking about how a "normal person" couldn't possibly stand that way or whatever. First off, I can tell you (as a life long martial artist) that her stance is pretty solid. Her center of gravity is convincing enough. Secondly, it's Harley Quinn. She's not exactly "normal". Third, it's a fucking drawing. LoL geez. Sorry. Just had to get that out. I love art and I hate pointless critics
The coloring and line work are quite good- it's just a distracting unrealistic pose. And yes, the left arm is to short unless she is pulling her arm back, and that would work if she has just fired the gun. I dont know, the pose just looks like she's waiting for the Joker to invade her with his pale member.
Yeah, one of the arms is a bit shorter, you're right. However, you guys might want to consider that Harley's incredibly acrobatic. So, I don't think the pose is unrealistic-for Harley, that is. Other than the arm. Still an amazing pic though.