Poster Help?

I know nobody actually reads this, but if someone actually does, can you help me?
I'm trying to make a "forbidden romantic" poster (as a request). I don't really know what kind of color theme that should be, though.

That's what I was thinking of. It looked WAYY better in my mind, though .-. Yes, I am fully aware it looks absolutely terrible. Like, wtf? It looks terrible and cheap and done-in-thirty-minutes (well, actually it was XD ). But anyhow, can anyone really help me on this? 


I may have to pass this on to another designer, but I really don't want to...