I hate spilling stuff on my clothes...nothing but regret for the rest of the day...lol
You did a great job with the anatomy (although I think the right arm is a little bit too short, but I'm no anatomy expert) and gave her a good pose. At the same time though the background is pretty barebones.
I'm almost 100% sure that was the intention seeing as this is a character centric art piece, but adding a background and or fully drawn ledge would definitely add to the picture as a whole.
All that said this is a pretty cool drawing. Keep it up Boco! :P