Well, I'll just recommend that if you can help it, save as a PNG file instead of JPG. JPG can drag down the quality for graphic art like avatars and signatures, tho it suits more to use for far bigger images. When it's small like an avatar, go for the PNG. There's a risk the file size becomes bigger than it would have been with JPG, but it's quality would look better. And I learned that sharpening is your friend. Aerith looks too blurry to my taste so you could try sharpening her more. Do you still have the working file? Like a PSD? If you do, then you could work more on your avatar if you want to try making it look better.
The PNG looks a lot better. It looks like there's some sort of a border on the left side, but not on the right.
There isn't enough depth difference between Aerith and the background, so its hard on the eyes to concentrate on either. Try making Aerith a better focal point.
Because the page has a white background, you cant see the border well. Thanks for the cnc people! I tweaked it and entered it^^ hope for the best!!! *fingers crossed*