I'm not sure how to feel about this.
First of all, I'm not a mod or a map judge, however my opinions will be based on the pictures given, and assuming the theme is unique.
By the looks of it, the parkour seems to have a good variety. I see water, slimes, ladders, fences, and more! All of this is good and improves the chance of your map being approved.
I know it can be hard, but if you can connect the beginning to the center build, it will also improve the build - it gives it a sense of unity.
The build itself looks nice, and the variety seems to be good, just some minor fixes and assuming the theme is unique and I could see this being accepted.
best of luck,