Sarasaland Adventure v4.0 (SMBX) - Crystalline Crossing (5-2; both exits)
Info: https://rpgmaker.net/games/4216/
I absolutely love the music in this level. It fits perfectly for an ice/snow level. Anywho, 5-2 is similar to level 5-1; it's straightforward, it's slippery, but it's also shorter and has a little more platforming than 5-1 as well. The water is safe unlike in the last level, too. However, some sections are quite tricky to navigate due to the ice physics and the size of some of the platforms though, so you need to be very careful with your jumps, especially around the carrot towers. Getting the first star requires you to be big Mario AND take the top path, while the second requires you to navigate small-sized slippery carrot platforms while dodging bullet bills. Lot of koopas in this level, as well, so you'll want to be careful dealing with them.