Aphrodite IX Cover

For one of your first digital colorings, this is certainly excellent!
I think the only things that could be improved is that the background could provide more contrast to the figure, and there could be more highlights on her, applied with a harder brush. As far as I can see, you've only used a soft brush. Indicating primary and secondary light sources around the edges of the figure with a harder brush makes everything more defined, I think. (But I'm very much an amateur - this is just my opinion )