It's Flappy Bird but with a rocket and a slightly altered lay-out and more room to maneuver. It works just fine for what it tries to be. I like the trail that's following the rocket and I can appreciate the way you designed the obstacles. The dark background makes the game feel more comfortable to play. Clean.

Well, the challenge of this type of games is always collect more "something". Try to make something more, a plus that will make your game unique.

I do not know if you already know Jonas Tyroller, but he has a video that i think will help you.