Souly, this is turning out good. I think the removal of the outlines is MUCH better, because the outline made it stand out, but you only really want the hero to stand out. I like the arrows....it adds a sort of upbeat/emotional touch to the piece; it screams "Have no fear, Jeremiah is here!".
If you look on the outline of the hair, the yellows--I'd say take them out...they don't seem to be doing much...also maybe on the outline of the moon as well...I'm having a brain fart right now, but you usually don't see extra outlines aa'ed, I think :S....
If it was my piece, I'd move the bulge down a pixel, but that's more personal preference than anything.
Good stuff. I can't wait to see more from you.