Basically, the judges don't want floating parkour in submissions. When your map has a bunch of smaller builds, sort of like islands, it's pretty much inevitable to have floating jumps since you need a way to get between islands.
The way I would recommend to keep what you've built but limit the amount of floating parkour is to make one big platform and stick all your builds on it. The hobbit house, the larger house (is it Beorn's house? the Green Dragon Inn?), etc. could all be on one big platform, and then the parkour could take you around and through the different aspects of the build. It's a little trickier to build parkour this way, but it's much more satisfying at the end. Take a look at maps like TostarenaTown or Ciel-Blanc (cough cough) to see how this can be accomplished.