Fun- Kind of meh. Had quite a bit of fun looking at the graphics and figuring out how to play the game, but it's a bit lacklustre at the moment. I think it's an interesting concept which can be explored further. As far as I can tell there isn't that much content beyond hourglasses. Hourglasses are definitely interesting to work out and do set ups with though.
Balance- Not really great, way too much clicking.
Uniqueness- This is the first incremental I've seen not use any words and has a fairly unique mode of production. It's definitely interesting, and given more care and refactoring could definitely be a nice game.
Theme- Replaying moves fits the theme so well, and it's such an obvious take you'd wonder why there weren't more submissions using the same mechanic. Great job here really.