I guess for the banners ill just give you some guidelines and let you decide what looks best.
1. I am partial to the colors green and black.
2. On the first one, have my forum name Kryzite in a prominent position. You can leave the second one devoid of text or just put "Pokemon" somewhere on it. whatever works.
3. Pokemon models I like: Shiny Moltres, Non Shiny Alteria, Shiny Latios, and Shiny Skarmory. If you can fit those in, go for it.
4. The first one is the first thing people will see in my thread, and the second is just to announce that these are my pokemon.
Do whatever you think looks good, Im not that picky.
Edit to avoid double post:
Finished it this morning.