Hello there
I have to agree on a few of the previous comments
1. Like Jaynin's says, for a first time color work it's pretty good, but as Jaynin stated you may ask the artist first to use their work.
I usually hate when somebody has a Yahoo group or posts somewhere saying they have a picture but never credit the hard-working artists.
(By the way, Jaynin, you rock, and your catgirl is cuter than cute!)
And, please don't read it as a direct attack to you (because it isn't) I mean, at least you coloured it, most "club owners" aren't creators themselves so it's easier to get images when you're not drawing them.
And I don't want to start a "Napster-like" debate about the free images here online because, the least we can do to the artists that provide us with their work is to thank them.
My advice is, at least, try to credit the creator.
2. Now, specifically on your work, it isn't easy to colour and you did it on a nice clean way, I hope you can show us some more soon
Best Regards