This is a really pretty game, and an impressive amount of work for the time! I see three challenges in the game: exploring/platforming, solving a slide puzzle, and solving the puzzle of the dungeon (building the path to the key and then the door). I think if only two of those elements were used I would have enjoyed this more.
Also FYI: when sliding rooms around in the zoomed out view, the controller didn’t let me slide rooms up or down, left and right worked though and sliding up and down worked fine on the keyboard.
Great Job!