Great job! The graphics, the music, the sounds, the atmosphere, the quality of the puzzles, the UI, everything is really polished. The game is clean, enjoyable, and some puzzles made me stop and think for a minute, before getting the "ah-AH!" moment that makes puzzle games so enjoyable. This game is really awesome, and I can feel the passion and work into it, well done ^^!
My only small nitpick is that I find the relationship with the theme a little bit far-fetched. Not that I wanted literal biscuits, but you only took the "risk" part and let everything else ^^'. It doesn't remove any quality of the game, and I didn't really liked this theme anyway (I mean, a theme that means "risk/reward", which is how 99% of games work in the first place) so I won't blame you to try to do something original. But I digress, congratulations, you rock, and your game is really cool =)!