Great fun. Didn't find all 7 shine pieces but found the 3 needed for the Groovy Guy.
Absolutely loved the custom background for the *SPOILERS* boss.
The collision for the blue mushrooms was difficult to judge, which made the penultimate sequence especially frustrating, though in general, great level design. The nonlinear "collect the things" structure was very fun and that coupled with the density of secrets made this really fun to explore.
Vibes were off the charts visually, and while the music could be better, Paper Mario mods have always had mixed relationships with sound, so it's not something I'm too caught up on.
Great Job.