I really enjoyed this game. Normally I really despise match-3 games, because they're so dull and generally unoriginal - but this one added a delightful twist.
I especially loved the graphics of the different elements. My biggest qualm, I think, was that the medals don't work, but that's probably just me being a collectophile or some such.
It would also be fantastic if there were sound effects, rather than just music. Maybe some tinkling or some such as elements fuse.
All in all, not a perfect 5, but very close, from me!