Coolio sigs, but I no likey the text >.<
Seriously though, I cower away from that monstrous sized text in your request Nadeko sig. It just jumps out too much and the monotone color also seems like a cop out after all your subtle work in the background. I've also never liked Papyrus font in sigs.
The Sephiroth sig works the text better, but I would go for a bit more opacity in the phrase "Wings symbolize freedom / for those who have none"
Very silly current sig/avi combo