I like the minimalist design, very nice. However I prefer the flag on the bottom, so it goes from bigger to little as you go up, personally. The back is dynamite. I would prefer the title centered on the spine and another FE logo at the bottom. I think it'd look more balanced plus I like FE logos visible on my shelf. ?
Also, I don't know if you know this but the reverse flag is a nice reference to the military. When a flag patch is worn on a uniform, the stars face forward no matter what, so patches worn on the right arm look like the one on your cover. It's a nice reference to CA's roots, even if you didn't intend it.
That being said, the flag is burnt up so I don't think proper flag protocol is really a priority in the midst of a Civil War!