The good and the bad
The good - The graphics aren't that bad and it does seem like you're putting a lot of space. The designs of the enemies are pretty creative. It's often a good idea to have a mute button for things. You can learn through training the right way to aim those blasters because they're not straight (more on that later). Congradulations on getting such a high score with something with few views.
The bad - You do need to work with shading because some of the colors look a tad off. It looks a bit dated given modern Flash standards. The controls seemed to not work that well because I couldn't tell half the time where my blasts were going to go. There could be more detail in the background too.