Excellent start but...
1 There needs to be a way for the player to direct their fleet so they don't all just split up and get massacred.
2 Restart from the beginning of the level would be nice.
3 That was an awesome game. I know my comments are pretty direct but I only make suggestions on games that are already great to try and make them perfect. I seriously just sat down and played this for 3 hours instead of doing my humanities paper. Keep up the good work