I have done my 4th level which is called The Doors Maze (Do not load this level to floor builder because it is too unstable and it also lags)
Floor Difficulty: Hard
This level has 4 notebooks, 3 characters, 1 exit, and more
Here's the link
For RAR Users https://www.mediafire.com/file/wc0mac5wpg4j0fy/The+Doors+Maze.rar/file
For ZIP Users https://www.mediafire.com/file/sqdm11x07v85j9j/The+Doors+Maze.zip/file
Installation Instructions:
For PC users: Make sure you extract the file then go to this location C:\Users\yourpcname\AppData\LocalLow\JohnsterSpaceGames\Baldi's Fun New School Plus Ultimate Edition\Floor Customizer and then put the folder here After you're done launch bfns+ then click on game mode and click on floor customizer and find the map from the right side and you should see the map you installed
For Android users: go to android/data/com.johnsterspacegamesbaldifunnewschoolplusultimateedition/files/floorcustomizer and the custom floor is need to extracted (but if you need zarchiver good luck) paste on floor customizer and done! (credits to principal gaming for the tutorial)
Video for this level is coming soon (Oh btw there might be some stuff that I missed which is the reason why I edit my comments several times)