This is my first sig and i am really bad at GFX :S atleast give me a few tips so i can inproove my gfx skills (like i have any skills but yeh please give me some tips)
First of all, if your not using Photoshop, get it. Second, get a good color scheme going. Looks sorta plain to me, next time use the brush to blend some of the color into the background. This looks pretty nice for a first, because it looks like you understand the point. The black spot on the right should be chopped off, and move over your render. Then like I said, maybe brush abit, and add some gradient maps to get some good matching color going through it. The font is really choppy, the colors you used is alright. When laying out your font, if your in photoshop, make sure the setting are selected to Crisp, that smoothens out the sides. Maybe throw on a border and it will look pretty alright for a first. Keep going.
Yeah, get photoshop. If you're using GIMP or some other program, the text may appear extremelly choppy.