Butt through Glass

The girl is JoJo. I’m making it for someone’s fansite.

Darker and with no distortion. You sure this looks better? The glass chair looks convex, so shouldn’t it magnify the butt? Oh, and how are my butt drawing skills? The butt was not there in the original photo because she was sitting in a chair.

The reflection is obviously incorrect. It would be extremely hard to draw the back of the calf realistically .