Hello Blurpyfied,
I regret to inform you that your map is being rejected.
The theme is original.
The build is one of the main concerns here. It isn't accurate to what you were going for (if there's a certain type of microphone you're going for, please provide a reference because at the moment this does not look like a microphone.)
The parkour is a bit confusing throughout, so make sure you have a clear path for players to follow. Avoid using unnecessary blocks throughout (enchanting tables being an example.) The difficulty is also inconsistent and overall does not fit an expert.
Thank you for submitting this map, I would love to see more submissions from you!