an Entry by your local Interrobang

Here it is!

http://i55.tinypic.com/2cxsqq8.jpg

Any tips or comments are gladly appreciated! :)

You need a light source. You could use a large, soft-edged round brush, or add in a light texture.
Try adding gradient maps to help blend things together.
The text distracts from your focal and the colour doesn't match...the drop shadow also isn't necessary. Perhaps try using eyedropped colours to help it blend with you sig. Using simple looking text is good though, so good job with that.
The colours in the background are nice, and you do have some flow going on...but it feels unfinished. The left side is really empty.
You could also blend in the render by smudging or erasing around the edges a bit...

I'd recommend checking out the tutorial section, there's a lot of really great stuff there that you could learn from. :]
Keep it up ^^

Will do, although I won't do it to that specific sig. I'll keep it in mind for my next one. :]

I decided to do what you said so I got some practice with it. :)

New:
http://i54.tinypic.com/111tf1y.jpg
Old:
http://i55.tinypic.com/2cxsqq8.jpg

Hows that?

nice style ;) i like the "new" one better, i always love sigs with lights, tho im not so goodat them , hihih ^^
Well i think colours are great, but text could been better, and placement at the old one are better!
Great job mate!

Thanks! :)