The concept was interesting at the start, but filling as many holes as you placed is a painful chore VERY few people are willing to put up with, let alone enjoy. A meaningful puzzle with a great aesthetic can be made accessible without subjecting players to thousands of steps as they optimize the filling of 10+ holes…
I respect your desire to improve your levels, and look forward to what you come up with next. This, however, is not something I’m willing to spend my time on.