Looks nice! What I would change are the arrows/WASD controls. I would prefer the W key to be a forward trust key. Analogicaly the S would be backward trust. A,D would be sliding to the sides. This way the controls would be more intuitive imo. Keep experimenting. Good job! :)
As Steve Jobs said: "The good ones are copying, but the best ones are stealing!" :) I think it's a good idea to check some other projects and steal the controls ideas there. Check starblast.io or any other old games like Asteroids, Stardust, Super stardust etc. Good luck and have fun with game making :)