Definitely need settings to tone the graphics down. AA, bloom are things I never have on anyway, but this was a little choppy!
Anyway, this looks awesome and I think this would be a great base for a merge game. It already looks similar to Civilisation 2048, for example. Though I think this'd be more suited to a game where you pickup/place the tiles rather than shift them, then like 4 matching tiles automatically goes up a level.
I'm actually not a fan of the focus effect, where you bring the focused tile up and lower the rest. Maybe if this was more subtle, rather than taking everything out of view...
But yeah, really cool, look forward to seeing this evolve!