Wow...you are definetly improving. I like the 5th and 6th ones from the top. Although I don't like how every sig there is the same size...try switching up the dimensions every so often. But good job, still!
1st: Preety good but I think the backround should be more blue to macth the frozen. Hard to see the I in Ice Age.
2nd: Don't really see what you did.
3rd: The backround macthes the render.
4th: Awsome blending, the blur go's good with this sig.
5th: Backround is to simple.
6th: Backround dosn't macth the render.
7th: Backround is to simple.
8th: Awsome sig! Good lighting. Cool backround. Probally the best out of them.
9th: Awsome backround, really go's with the backround. Only problem is the scanlines.
The Halo one is very nice, great job on it! I also agree with Crazy, the 5th and 6th signatures are very good as well. The text in all three are pretty good, as are the backgrounds. Nice job!
__________________
"History will be kind to me for I intend to write it." -Winston Churchill