LOL I'm not part of the pink peoples.
A lot of them seem to have problems with the blending aspects of the image. Like they need to be feathered and blurred in more, try using guassian blur on a duplicate of the main image then change blending mode or whatever to something other than normal and mess around with how it looks. Also, work on your text blending, let it be covered my some of your textured layers so that it looks more discrete and cool looking. Also look up scatter brushing, or smudge brushing for doing neat effects and creating a whole sig with a render and a background color.
Victim...what happened to the guy who did the work in your app?
1. Text that is easier to read, and goes better with your renders.
2. Use Match Color under Image and Adjustments to play around with the renders until they all belong to near the same color pallet.
3. Try a black and gold background, or black and crimson even. In this case matching the background to the renders isn't doing much for you. Find a fractal or make a more defined background.
4. I personally LIKE outer glow, but it has to be done right. Your grungy font with it's grungy glow are out of place in this image. If you decide to stick with your current color pallet, I'd choose a white font and put a black border around it.
Don't let the renders dictate the image! Their colors can always be changed, like I did in this piece from my gallery (which in hindsight, probably has too much glow going on around the renders, but eh, it was meant to be reduced for use in sigs anyway):
Heres a few problem I see in your signatures and banners.
1. The text isn't so great and it sticks out way to much
2. Blending the render
3. Image format (Save them as a .png)
4. Light Source
Those are just a few suggestions to clean up your GFX a lot. Hope they help.
I know this isn't my best work. I'm glad I didn't spend too much time on it because SYN MAV3RICK XS said that the banner is permanent and it can't be changed unless they go through and edit it on each individual page. He said they tried to change it once and it took they forever to change it back.
Also, Chocobo that one you made is amazing. I don't think the background is the best but you did an amazing job with the renders. Chedder, your banner is great, but I think Chocobo's is better.