Welcome!
What an interesting idea to take what is essentially a computer drawn image already and make it look like a painting.

It gives me a few ideas.
I take it you are using a mouse to do this? It must have been time consuming. If you really like doing this, you might want to consider getting a tablet (I have a cheap wacom 4x6 and don't know how I did without it now).
I quite like the look of your work (and I am partial to anything with pink in it). You may want to search out other photoshop plugins and brush presets to experiment with different looks. I warn you, this is totally addicting.
You might also want to look at a technique called smudging and a nifty link to a great tutorial was shared here last week by one of the mods which you can find here...
http://www.nikoncafe.com/vforums/showthread.php?t=84461