I feel like the game lacks instructions. There is no in-game tutorial but you could have added some hints to the game page. I got to the red triangle level, but couldn't figure out what I need to do to pass.
Also, I think the limit of just 5 shots doesn't work well with the puzzle genre where you're supposed to take time to figure things out, play around and test different mechanics.
Still, reflecting is an interesting game mechanic, you could definitely make some good levels with it. It reminds me of a game Octopticom.