The second half of your map is the main problem. While the first half makes sense as it's like Shrek's hut, the parkour just turns into a bunch of random and confusing jumps upon going into the floating blocks. None of it felt relevant to the actual theme.
If you wish to re-submit this map, completely redo everything after you get out of the main swamp bit. Also, maybe add some podzol and soul sand into the inside grass area in the swamp hut.