From what I've seen of your denied maps, they all have a common theme, which is repetitive parkour. You have tons of different types of jumps at your disposal, so take advantage of them! Just to name a few:
- Soul sand
- Ice
- Water
- Lava
- Slime
- Walls
- Fences
- Chests
- Cake
- Enchanting tables
- Brewing stands
- Anvils
- Barriers
- Stairs
- Slabs
- Cobwebs
- Trapdoors
- Doors
- Fence gates
and there's even more than that! That's not even going into more complicated jumps, such as:
- Neos
- Cross neos
- Neups
- Corner jumps
- Blip-ups
- Throughs
and once again, that's not it!
Remember, you can always resubmit a map if it gets denied! Two of your three denied maps were denied mainly due to parkour (Ukulele and TeamTreesPlants), so try to spice up the jumps and resubmit. It'll be much easier than creating an entirely new map and shouldn't take longer than 10-15 minutes per map. Good luck! <3