This is a very artful piece, which I rather enjoy. The trio of colors you chose really complement each other well. My complaints lie mainly in the body proportions. And I've actually looked through your other work (manily Soft as Chalk) to be sure that these aren't consistent style preferences, so I wasn't accidentally giving you B.S. critiques.
1.) The shins are very long. Proportions have it so that if you bend your knees all the way, the heels of your feet would dig right into your buttocks. Her's would swing clear past her butt.
2.) the large hands and feet. This was the thing I was gonna consider a style choice. The butt of the far hand also juts out rather far. If you bend your hand back like that, the wrist kind of just turns upward without there being a noticeable butt.
3.) This one is VERY minor so choose to ignore it if you will. The angle of the pubic area. I think the line should slope more inward, otherwise the suggested placement of the crotch/vagina would be off.