I agree with airhead that you\'re a very neat painter, which is always a good thing in this game. I think you\'re off to a really good start. You\'re also daring and confident enough to try freehand, and you made a good go at it.
Suggestions:
1. Fewer colors, less can be more. Choose color combos carefully. Check out this bit about color http://www.wegotgame.net/jen/colors.html, and maybe check out a book about color theory from the library.
2. More careful blending. It takes patience and control, but the results can be smashing. Again, I agree with airhead, think at least three values for each color, and build them up gradually using thin layers of paint.
3. It looks like you ignored his eyes. If you\'re brave enough to go after freehand like that (and pull it off!) you shouldn\'t be afraid to tackle the eyes on your minis. Without them, the figure looks unfinished. Plus, there are alot of options for handling them which can add another level of personality.
Good luck! Keep painting! Cheers!