Hard and Lunatic are great difficulties, but I'm concerned about the difficulty gap between Easy and Hard. It's a little disappointing because it really seems that you half-mapped an Easy difficulty just to meet the requirement. I understand that, for most people, it's difficult to make an interesting Easy difficulty, but it is for a good cause. Not everyone can start the game and keep up with a Hard difficulty right away.
Anyway, according to rankability guidelines, your map is rankable. I'm starring because I want to hear your response to this. If you really are too stubborn to change it, I will bubble it, but I'll feel bad about it ;_;