I really think it needs improvement.
The interface is my one big concern. The explosions are extremely distracting, the aiming cursor is very hard to find, and the ship can easily be lost track of. Unless the main challenge is to see through a flurry of input that is supposed to completely throw you off, I suggest you improve this. It's not a hard fix for you. Just make the enemy explosions more transparent, and the ship and cursor more visible. Simple changes in graphics will make this not-so-good game into something fantastic.