There are alot of Showcase maps for Texture Packs, Models, Items, and Shaders. All of them are showcased Differently and Seperately, So i customly made it to Mash-up all of them in one a map.
Select version for changelog:
Changelog
Update 1.0.0:
The ULTIMATE Showcase Map (1.21+)
+ 5 New Areas
+ Map Release