The Entropic Esper didn't seem that bad until I took contact damage; it's kind of like a tiny floaty entropic buzzsaw. I wouldn't mind seeing the shots getting a reverse knockback to shove you towards it to play that aspect up, to be honest.
I agree with this one, these guys are basically just purple water espers otherwise. The player would have to actually crash into them in stupid fashion for them to do any real damage. Being that they're mostly from the Deep, these guys should be much harder to deal with. Possibly up their fire rate as well.
As for the new spells, Leaping Death is nice..... very nice, actually. That one will have alot of uses.
Flower X could use something to make it stand out more; mostly, after messing with it a bit, it's eclipsed by Insect Orb. It's very similar to Ice Cross otherwise, but being an Earth spell, Insect Orb completely outdoes it. Which is too bad, I usually find this type of spell to be pretty useful. I'll have to experiment with it some more.
Also.... Clinging Fetor getting fixed, it's FINALLY USEFUL. I find myself using this one quite a bit depending on what I'm fighting, and in what type of area.
EDIT: Actually the X spell is better than I thought. It's better at taking out small targets quickly and seems fast to recharge; Insect Orb is better against larger targets. I'll end up using both pretty often, I think.