Hello Zonk45, I am sorry to say your map is being rejected.
Theme: The theme is pretty unoriginal we have a lot of end/stronghold themed maps already.
Build: The build was quite boxy and plain, some more decorative on the inside and outside of the build would be nice to see!
Parkour: The parkour was good for the easy difficult but felt a little repetitive, I think experimenting with where you put the parkour on/in the build would help to spice things up a bit.
Thanks for taking the time to submit your map, hopefully, you will submit more in the future!
Have a good day, and happy map building- Cele <3