~Dragon_Master~, you still need to credit whoever made put the banner together. If you did then it's fine.
CheeseChan.xx, it's fine.
talala, it's fine.
Swampert_trainer, it's fine.
Dan The Poke Man, it's fine.
xdragonx, it's fine if you made the banner. Otherwise you'll need to credit whoever did. Everything else is fine.
Dark Eevee, you need to credit whoever made the banner. If you made it yourself then it's fine.
Pamizard, it's fine.
GalladeRocks, it's fine.
Withdrawn Trader, it's fine.
DarkLugiaMaster-Gir, it's fine if you made the banner. If not, then you need to credit whoever did.
MechaLugia, I think that's a screenshot from HGSS, right? If so then it's fine by itself, but if someone made that then you need to give them credit.
ESPNfanatic35, it's fine if you made the image. If not, then you need to credit whoever did.
9dragonbreed, you need to give credit to whomever made the banners if you didn't make them yourself.
§Suicune§, Nny, Haruka, and ^^Yoshinichi^^, those signatures do not meet the signature rule requirements for being too awful.
Pink Lapras, stacking counts for both images and text, yes. Your signature, however, is fine as it doesn't exceed the height limit of 420 pixels.
Goddamn.