Approved.
Quite useful, we have fire as in lava golems, all sorts of rock elementals and water, but no air... well now that's fixed!
I like what's you've done with the overlay on-top of their bodies, that extra texture layer looks much more... tempestuous than on the original arcane elementals.
Animations work all fine, PKB as well. I wonder if you considered adding tornado spin (the small PKB, not the whole tornado model) to a base of one of those elementals?