Just so you know, I use a variety of phot editing apps to create covers with optimal quality. I usually use Pixlr, Color Cap, Fontcandy, PicLab, as well as PixlrExpress.
Note: I don't do M-rated covers, sorry.
Genre of Book:
Title:
Author:
Subtitle: (optional)
Ideas:
Photos: (optional)
Textures:
Overall Feel of Cover: