My first showcase

First off all, hello everyone! I'm new in this forum and this is kinda my first post and thread, so be gentle! Or don't be, it's up to you guys. I only want some critisism and comments about my works.
I have had photoshop cs2 about an year, but I have never really used it much. So I think Im just a novice and I want to be better.

So let's cut the chase and get to the works, ok. I'm going to put them into the order of oldest to newest.

http://i175.photobucket.com/albums/w...ed-/Styler.png
I really don't have anything to say about this, just an experiment.

http://i175.photobucket.com/albums/w.../Narutosig.png
Yeah I know, Naruto. This was made of the render of that character.

http://i175.photobucket.com/albums/w...pacollabv2.png
This one says it is a collab, but it ain't. Because my partner quited when this sig was half way ready, so I thought that I should finish the job.

http://i175.photobucket.com/albums/w.../Beautiful.png
Well yeah. There's a beautiful lady.

http://i175.photobucket.com/albums/w...d-/X-zibit.png
Testing with my man X-Zibit!!! Hahaha.. hahah... Not really.

http://i175.photobucket.com/albums/w...ed-/Raiden.png
And this one is my newest. I tried something different with this, but I don't know if I succeeded.

Oh, don't you guys mind the fact that every sig has "Corrupted" mark there. That's my other forum name that I have used. From this point on it's going to be changed to Smulu.
So thanks If you checked my sigs and this thread and you are still reading! Many thanks! And oh btw, my english is horrible, isin't it? Very sorry about that.