I really enjoyed this to the point where I don't have much to critique. If I were to stretch a bit, a critique I can think of is that I feel that it didn't align with the theme of "Roles Reversed" as well as it had the potential to. When you play as the level designer, you are just moving pre-existing elements, not really designing the level.
But this really is a nitpick for a game jam game. Again, I enjoyed myself, and good job on this game.