This was a joy to watch. It is good to hear the thought process behind the level design, and the fundamentals you went with are ones that are valuable for any designer to consider. When you try to insert a clue about the behavior of enemies or blocks around you that comes about while the player is naturally responding to things they already know or assume, I feel that is smart design. In this case, you are also making and showing different parts of the level that have a relationship with each other, something necessary to complete or manipulate to get the desired effect in another part of the level. I like that while most parts of the level use the player's instinct to teach, one of the later ones challenges the player to resist collection by using the P-generated blocks in a less common way. I think using your regular doors and pipes back and forth in the level makes for a much more natural way of resetting a failed puzzle. What you have come up with is a really nice-looking exploration and puzzle level.