This map will not get accepted, firstly the theme is unoriginal as there is Rainbow themed maps out there (look here for the map google doc :
https://docs.google.com/document/d/1lZKQZMgGev6fXyhZ8nCPkTzNIj0yOjXjUTDvfzKNzl4/edit?usp=sharing) and the build is not pleasant to look at.
secondly, the parkour is repetitive and has no variant in jumps, all of the jumps are from a full block to another. try to make varied jumps in ur parkour.
Thirdly, the parkour is just floating. this map is just rainbow towers in mid air. you should try and make a main build where you incorporate the parkour into it. (if you need an example look in /warp beta on parkour) next time you submit a map to be accepted try to checkmark all of these things I stated above. (sorry if i sound harsh)
overall i rate -1
Looking to play ur second map, that I hope will be much, much better than this map!