Such a unique idea, really well executed!
I was having a bit of an issue with depth perception, but after a few shots you can somewhat gauge where things will land.
Graphically and game idea wise everything is in place, the only real “issue” I can bring up is that ships felt bullet-spongy, meaning you had to sink quite a few cannonballs into them. I think if the turn/movespeed was sped up a bit, and ship health reduced, but numbers increased this could be a real banger!
Looking forward to if you update it in the future!