Fantastic puzzle game! I don't often play puzzlers so I find them a bit tricky but the difficulty curve and progression in your game was great. The last two levels were tough and had me thinking but it was enjoyable and made me want to keep playing till I beat it! Nice little reveal at the end there too.
Only thing I could suggest as an improvement would be to have an 'undo turn' button just to go back one step, rather than resetting the whole level. All round though one of my favourite puzzle games for quite a while. Fun to play, well designed, fitting of the theme and looked good. Well done! :)