This was a fun little game, and it fits the theme well. But I really think you should be more liberal with the lasers amounts.
Figuring out their trajectory was hard for me, and so a lot of the game was trial and error. I still think you should have a limited number of lasers, but it always felt like I would get a bit of an idea on how the trajectory would work, then have to start over because I didn't have enough lasers. Or maybe I'm just bad at this game :p.
I like the art, the tanks are well drawn, but they have a white outline, and a white line on them, so I don't think it was exported or cropped properly. I do like the backgrounds though, and love that they change. That's a good indicator of the level restarting, and also they are just nice to look at. Soothing.
This game could really use some sounds. Sounds for placing the reflectors, and shooting the lasers. It would also have been nice to actually see something happen to the red tank, like it exploding once you hit it and a little "Level beat" or something. Would make solving the level really satisfying!
Still I had fun with it, and when I have more time I'm gonna try to get farther. Good job!