The colors are nice, really like the blue and gray one's.
The portraits are really well made, the only think I would like to suggest is that you try and do something about the woman's cheek-bones. If it wasn't for the fact she was so voluptuous I would have thought she was a he dress like a woman. No offense meant or anything, its just the first thing that came to my mind... Other than that, she is awesome looking imo. ^.^