I love the game overall, but I have 2 main criticisms.
1. The black dress angel is BRUTAL compared to any other non-boss enemy in the game. I would recommend toning down her TP damage and having her fire only 1 ball as opposed to 3 if the TP hurts.
2. The gallery is not populating for most of the monsters for me, and I am not sure why. I've seen them, but they are not saving.