Simple but it works, I feel like you probably made smart use of your skills to create something that does the job and is listenable. I like your idea to lean into the hunter aspect of Krems with the kick sounds. You created some nice texture by using a variety of different kick tones and rhythms, rather than a standard kick drum loop pattern, and it really fits this challenge.
I'm guessing this was designed to loop, thus the abrupt ending. You've just got some dead space left on the end of your export, which happens all the time if you don't look out for it.