Very interesting concept, the different candle spirits and their symbols are so intriguing, and the brief glimpse into this world and its inhabitants. Wouldn't mind owning a candle like this myself.
I guess my only suggestion would be some sort of hint on how to unlock the other houses for those of us less clever.
(Hint: gotta not get your fill)
Love the Mythology part that unlocks after finishing the game, please include this in all your games in the future too ^^