Hoi Elephant 3,
Sorry to tell you that your map have been rejected.
The theme is like said before me, not really original, because there is already some Ducks maps. The build is not really good, the Duck looks decent, but the main problem is the parkour floating around, it's really messy and unattractive, please try building your parkour on/in the build and not around. The parkour could be better, it's varied, but maybe a bit repetitive.
Thanks for submitting your map, would be really good to see more maps from you !