Sigs: 1. 2. 3. 4. / 5. My comment on my Sigs so far: I did improve didn't I? 3D: Note: all of my 3D work is rather big so this is all I will show you so far. Also if you wish to see any of my userbars you'll find them mostly in the Userbar thread.
Those are pretty good, your 3d is cool too but you should try cleaning up some of your signatures-or is that how you want it to look?
The second one is sort of unclean. You should go in detail and get rid of stray black marks on the image.
Most of them look live they've been heavily altered by the standard filters (the first three most-so), and I won't lie, it looks a bit cheesy. The first cuts off a bit at the top but it's not very noticeable. The second has a couple little pixels that wouldn't be hard to knock out, heh. The third looks like the render was cut poorly and then just filtered, but maybe I'm wrong. I do like what you did with the text in the fifth one. Your 3D desk is cool looking too. :-*