Thank you for the review! To answer your question about the character Eremiel, I gender swapped the character from make to female for story purposes.
Sorry you had difficulty with challenge level. Easy mode comes with save/heal points in both shops and before the bosses. Normal only supplies heal/save in the shops and Insane mode is mostly just to give me a challenge. The save points don't heal so you've got to make due with power ups to restore health.
As for the cover art, it actually does have a significant tie in with the story, one that isn't realized until you see all of the story and even then is easily missed.
Thanks again for playing my game. Hope you enjoyed what you got to see!