Natalia - Sketchy Redesign

I think the design is really solid. I like how's she's really slender, somewhat as a way to reflect the slender snake on her arm. And her colors are really nice too. The purple and the Yellow compliment each other, and I think it really makes the eyes stand out. Plus the character looks really cute, and also pretty creepy.

If I cold suggest anything, it would be perhaps adding some scales or the impression of scales on the snake arm? The way you drew the snake and the clothes have the same texture, and I think the difference in texture could be interesting.

In terms of anatomy, the body is nicely done and everything seems proportioned really well. The legs are a bit long, compared to the rest of the body, but that is the only issue I'm really seeing.

The shading in the image is really good, I'm liking the yellow diamond shape in the back, it helps to bring the character forward and give your attention to her. I also like how you gave the impression of her light source being behind her, its a neat idea. However, I'm not sure if the black shoulder (viewer's right) her nose or part of her chin would have highlights if the light source is from the back.

Nice work!