Oh, nice work with the graphics! :) The tank sprite and the tiles look great, it's a shame you couldn't put more stuff into it, like the flipping animation, enemies and more features, that would've been really cool! Having a level generator is pretty nice too and the way the game looks, I can totally think about what you had in mind for it!
Keep working, keep making, it's really nice to see this type of games! :D
(yet...)