I was playing around tonight with a few more cover variants.
The first design on this slate is a simple redress of the covers from earlier. I simply replaced the clean font with the distressed one.
The second and third designs here are almost identical. I'm concerned about the readability of the middle design from far away, so I changed the title from red-black to simply black (the right side example). This is certainly different...and I like the idea of putting a more active picture on the cover.