Can you brighten the background a little? Otherwise, I like it.
One other thing I can suggest if you want to make it look more like your existing cover (which you don't need to do -- only if that is a goal) is to put solid spot-color boxes behind the name and title at the top the way you did in the first cover in the middle. (Don't place it the same way, though -- leave it at the top.)
Again, I don't think the design needs it (although it might help that small title stand out a bit more if it were in a black or dark blue solid band), I'm just saying it might make this book look more like your first.