After reworking the original cover, I made some changes, and here's the finished one. I made it wider, and got rid of the yellow line that ran through the center. It looks better, I think; it seems to have a nice balance to it that the original lacked.
I'll be formatting the book now. That's the process where you change an MS word document into the text that's seen in the Kindle. I do everything myself; I guess I'm a one man band. Just don't ask me to play everything at once! :)