First of all, thank you very much for all your feedback, really appreciate it!
There are certain things you fail to notice after you spend months replaying your games over and over, so it's nice to hear opinions from actual players.
You make a really good point about the hitbox, the shard collect FX make it hard in some instances to see your hitbox. I'll find a way to make it stand out more, and probably tone the collect FX down a bit. I wouldn't remove it completely for now as I quite like it, but I'll keep it as an option in case it's still confusing after these changes.
Regarding the Ship design, I added the circle around the player to make sure you always know where you are. From my past experience during demos at conventions, players tended to lose track of their ship and got frustrated, so I think that works well. There's no added functionality though, and I can confirm there's no Grazing mechanic in the game. And yeah, I guess the trail could be a bit smaller, I'll look into it!
Thanks for sharing your game, I'll check it out and let you know what I think!
I should be able to upload a new build soon with some improvements and some preparatory work for Steam, I'll start looking into those changes too.