Good for your first try. Heres a pointer. Don't scale down the render that much. It looks good most of the time at its default size.
Its okay for your first sig. The render is wway to small though. Even if the whole render doesn't fit you want to be able to actually tell what it is. THe background is kind of boring, but at least it isn't clouds. The text is kind of hard to read. I think it should be darkened up. Your sig is too much of one shade it looks far too light. It's dull and needs some contrast. It's also too purpley blue.
yeah... its just PSP 8, and the render was at its regular size... got it off of HBO... I really need to learn blending, and not just change to hard light, overlay, hue... that junk...