The face seems a little off and your colours are a little muddy in parts and look a little scribbled. I like the concept but the execution is slightly off. Good try though.
Yeah, coloring isn't something I'm great at. Working on it.
I think, in a way, like anything like this, if you take a lot more time over things, then it will look better. It depends on whether you thought that this should be a refined piece for you or not. I think it's often easy to scribble the pencil but it can often be better to make one mark, lift the pencil, start from the top again, then make the next mark rather than scribbling back and forth. It's worth experimenting with pencil techniques to see if you can find something that you are more comfortable with.
Yes, and I have been making improvements. Mainly, I enjoy sketching and shading, not coloring. So, I don't practice it often. However, I also realize that part of the issue with this piece is that her body looks really warped. I tried fixing it again and again, but once it started to quit being fun, I didn't really erase much anymore. I don't like to take the enjoyment out of art, but I realize sometimes, it's necessary in order to improve. I've been stepping out of my "art comfort zone" as of late, and hopefully my art to come has improved since this piece from about a year ago.