This game looks very nice, but it's too hard.
The obstacles design are really poor. I already find Bullet Hell games hard, but this game is even harder than those early levels in Bullet Hell games. I would find restarting the level after 1 hit acceptable if the obstacles are easier avoiding. This really makes me question how would a creator get through these levels playing from the start.
I would enjoy this game more if it has better difficulty curve. This could have been a fun game by the look of it.