They're all pretty good. Little too big for a sig to use. Perhaps shorten the height.

Do you use Paint?

I recommend http://www.cooltext.com for downaloding free fonts. The ones you use now are a little basic. You can also do dogy effects with Cooltext.

I use Paint. I recommend putting a picture either side of the text.

Other than that, I think they're ace. Awesome backgrounds.

There not bad but, I dont mean to be hard on you, but it could, as a signature use some more work.
you use gimp as a program wich is cuite capable of making decent sigs.
for team psyche; I dont know if you made the bg yourself or imported it but Its a bit low quality, as well as the font wich is a bit to simple and to big wich goes for the other sigs as well.
What I also want to mention is you really need strokes to let the signature go peacefully into the website, wich in most cases makes a difference.
you did cut-out the pok

you can use sprites from psyche pok

The last one is a great improvement, though the choice of text size is bad, It covers the torchic sprite and is to big, but the Concept is great though, maybe like in your current signature, split them up and add borders and leave the text ( because without the text people will probaly still see the concept/Idea ).