Well, you can tell the health/mana % by the globe (how full it is), i was thinking having (small) toggle buttons for numbers on the globes (current health/mana and small regen numbers).
Also thinking or moving the side buttons (tabs?) for inventory, skils, pet, stats, etc. to somewhere else; possibly in the corner somewhere (by the map?).
Was thinking of making the charge bar more prominent, thinner but longer, and positioned lower to make it look like it was part of the skill bar. I'm rather fond of this idea but don't know how many options a modder would have while making the UI, don't know how flexible it is.
I don't know what the preferences of the users are, keep the cartoony feel, go for gritty realism, or a mish-mash of the two; how dark can the UI "feel", these sort of things.
Feedback is what i need, what do you guys and gals have in mind?