Hey BluePottwal,
I'm sorry to have to tell you that your map has been REJECTED. I must congratulate you on taking on such a creative and original theme. There are no "Concert" or "Tomorrowland" themed maps on the server, good job! The build, on the other hand, is not so good. The main issue I have with the build is its messiness and ugliness. The dirt platform filled with floating heads is just not very appealing to the eyes. It's all just lacking proper detailing and block choices. The PK length and difficulty do fit the hard difficulty, though! Although some jumps here and there were a little too difficult (I'll show you one of them down below). The variation in the parkour was also very splendid, proving to be quite an enjoyable experience. Yet, I definitely feel you could cut back on the ladder jumps. I hope you take these criticisms into consideration when submitting future maps, good luck!