Hope you don't mind a little CnC!
Avoid filling your background with the brush tool, it tends to look sloppy. The warp filter has a similar tendency. Try for cohesion and be careful with your colors. Overly bright/high contrast colors are very hard to pull off correctly.
Look for other methods to make backgrounds, and try blending the render with the background a bit. Tutorials would be a good start. While most of them are for photoshop, a lot of the concepts and techniques still apply to gimp, except you can't follow the instructions exactly and will have to look/experiment a bit to get the same effect.
Not too bad for a few days! Good luck.
New Signature! So everybody tell me what you think.
Spoiler!
(Sorry for double posting)
Spoiler!
Getting better, keep at it!
Some tuts here.
Maybe start making use of C4d's and stock images as a next step.
Tbh there's a lot of different things you could start implementing, look around and add things in slowly.
I'm so proud of myself, The is DEFINITELY one of my best.
(Sorry for double posting)
Last edited by DarkSide; 08-16-2013 at 01:53 AM.
Spoiler!