Cool game! There are lots of great ideas, I loved the skeleton minigame, it was a "oh, this is fun!!" moment, and generally the theme of cleaning up after adventurers is implemented very well. The graphics are cohesive and colorful, I would have enjoyed some background music to set a mood.
The first time I interacted with a skeleton, there weren't enough pieces to complete the grid, so I thought I'd have to find the missing bones in the dungeon and lost quite a bit of time because of that, but then I realized that the pieces were random and I just rerolled until it was doable. I backtracked a lot because I was constantly missing pickup items or small environmental details like chains, but I persevered and completed the last of my work after about an hour of playthrough. Making the items shine or making them pop out a bit more could help the overall flow, but I still had a great time.
The puzzles are solid (loved the pipes, too!) and the dungeon environment is varied, all in all a very solid entry. Congrats!