no you don't need anything like that, it just has to feel right.
upload a version of the track that shows a full loop. i like the choir stuff btw, sounds good.
this sounds quite ok compositionally, as a boss tune. there's not enough energy in the synth riffs during the first 25 secs and that's more of a sound and mixing problem. but it's not bad man.
boss tracks especially are a great opportunity to go wild and fuck theory. have fun, you're doing good (really.)
but do provide a proper loop. it's all about how the track loops, especially if it's just a minute long.
btw is uffe a real name?