Stylish
I can really imagine playing this on a hand-held devise as some sort of Final Fantasy marketing spin-off thing. It has that kind of feel.
IMO it'd be better if the items were "held" by the characters rather than took on new tiles. That way matching with the character holding the item would activate it but the game wouldn't become harder.
I'd love for there to be more character levels, if they weren't so expensive or if the game was longer, that way the 4/5 tile bonus could be stacked onto the levels you've bought rather than fixed.
If you were to make the game longer then monster characters for the enemy might make the game more varied and tactical as would having more player characters that can be unlocked and then chosen from to the 5-man line up.
The game has a loads of potential.