It's a new Mario stage for Brawl
I made this one's models on my own in 3ds Max (except for the enemies, they're from Subspace Emissary). Not too shabby for a first-ish Max project, even if there are some UVW map issues...
The other four stages, I'd made with models already in Brawl. Besides limiting how much I could make them look like I wanted, that method also required a lot of wasted file space for textures and vertices that were only necessary to make the file load properly. In this one I was able to direct that to texture detail most people won't notice or care about. Mostly on the blocks and things. I wanted the texture for the ground to be twice as large as it is, but that crashed the game.
This is what it looked like yesterday:
This version is done but I'm going to make an alternate version with snow and different enemies in the background before I distribute it. Not that anybody here plays Brawl with mods.
That's a shame. Project M is super badass