I'm glad to see you're doing your own front
A few suggestions from me:
- The pic of the main dude on front looks a bit low res. And maybe it would look better if you made him red like the others?
- I like the red splatter/grunge. Maybe add more to the front?
- Flip the spine TT so it goes the other way.
- On the back I think you should decrease the pic some and make sure your synopsis doesn't overlap it. And the synopsis shouldn't be all capital imo.
- Maybe add some SF's if you got room for it?