I thought this was an interesting strategy game with skill requirements. You don't see that often and that made me eager enough to play this game before any of the other game jam entries.
There are a few improvements I'd like to recommend:
It's a very tricky game and the first level seems too harsh. Lining up shots requires getting the angles just right and the enemy starts with more ships than you. Consider an easier intro level.
Maybe also draw a line that shows the path the projectile will take. That's quite common in pool games.
You might want to improve your colour scheme. For example, the player's ships are the same colour as large parts of the background.
The music is very repetitive. It's the same short loop over and over. Consider adding more music.
My ship would often fire a shot while I was trying to select an action. Consider making it so that the ship only fires if a tile on the game board is selected. Or hide the action menu during the shooting phase.
Also, consider allowing for an option to restart the game.
Good Luck!