Hi Sarah. I thought about answering over in Open Critique, but I'll just go ahead and comment on the drawing here.
For colored pencils, they aren't going to blend or smudge like a graphite pencil will and they aren't really going to mix like big globs of paint can. However, you can achieve incredible depth and shading with them. The key is to think of them in layers.
Colored pencil works very similar to when you layer pure tints of watercolor or very thinned acylic paints that use multiple layers to build color. The medium is semi-transparent. So, all previous layers will contribute to the end result. So, think in terms of layers and not in terms of smudging.
There's a nice style to this. I like the positioning and lines in it. The anatomy is a bit confusing in the pelvic area. The curves line looks like the line of the buttocks, but if it is, it is too high for the anatomy. The stylized face is particularly nice.
The following is just a purely personal opinion. I'm not thrilled with the flower positioning. This is why. My opinion is that the "labia as a flower" symbolism is so overdone that I think it is difficult to make it seem original. I'd like to see you looking at other ways or symbols that you could use to convey the sensual themes that you are going for.
I'd prefer to see the flowers used in other places within the image so the symbolic elements aren't quite so blatant.