The lighter purple in the hair isn't noticeable at 1x at all, I think you could safely get rid of it and make the hair a solid colour. The shading on the skin is also very hard to see, it only becomes noticeable at 3x. I think you could darken it a bit (or also get rid of it, depending on the look you want).
I'm not really good at shading xD And my color choice is a bit limited. Thank you anyways I'll try to improve it!
I mainly made it to have something to put as avatar...