Second is my fave love the text and use of it...=D
I like the First and the last one . Last one, it looks smooth , Red color and the whole effect which it is giving out , is nice to see.
First one , i like the color and the image used is looking good according to the signature.
I like the first, second and third ones. They are fantastic and wonderfully created. I tend to lean toward the smaller signatures and things so don't take it the wrong way. They all are really very lovely.
First , second and the last one is awesome !!
I love the colors that you did on shana's hair in the last sig ^_^
The second blends really in with the sig ;)
I just dont like the borders ...
Also try to place your text with the flow and dont place it in the corners ;)