nice... the second one is my fav... except the fact that BLUE is me color. Nice job... keep up the good work Remember: when creating a banner, poster that needs to promote something you have to make it simple, clean and fast to read
I'm NOT being harsh, just logical. Try and run a campaign with any of these and then run the same campaign with pro design. I'm sure I know which will perform better. Banners / Buttons are meant to increase traffic and promote your business, if you think these will suffice, use them by all means. Good Luck.