Great suggestions, I think these are good notes. Having more clear and more often reminders on the mechanics/tips in a non-obstructive way is definitely something I've learned going forward.
I've gotten several suggestions for difficulty customization and having a customizable experience for those who want more enjoyment out of the game is definitely something I'll be adding to my next game!
I think I'm content with the flaws of this game (at this point, it's not worth the effort adding more stuff/fixes instead of making a new, better game). I think you'll really enjoy my next game!