Very nice modelling job. This hack is gorgeous. There is something glitchy about the water's appearance, I don't know if that's a plugin issue or what, but it doesn't ruin the experience. The texturing could be a tad better in some spots, but the modelling was very impressive. The design of the level was great too, it easily could have passed as a side level in SM64DS if you ask me.
Gameplay was fairly easy; I noticed you put a sign and a Toad at the beginning that describe basic SM64 controls so this would make a great hack for a beginner. It was fun to explore the level and the challenges were classic rapid-fire style Brodute stars, my favorite.
I only wish it were longer. Would love to see more hacks from you!