First lot of stuff posted here! :O I'm a little rusty honestly, it's been a while since I've created signatures, that is why some are quite a bit worse than others .
Great, i love them... Seems like you have been doing this for a while haha. Start using The pen tool it will add some amazing effects.
Dead space signature is best in my opinion, The others are decent as well. I like the smudge effects on the dead space sig and the lighting, just not the color.