I like this idea. Cool concept for a puzzle game.
It is made a little easy though because you can pathetically(lighty) throw a fire ball and knock to the candle over but it doesnt fall out of the "lose" box? It feels like that is the edges of the screen in 3 seconds.
If you plan on building on this concept I would shrink the area in which a player can lose if they knock the candle...or if they touch the candle at all game over.
Love to see where you go with this.