Hi. I am new here too, but have a few sales, and just want to share a link for you - read this topic, there are many tips from authors about creating and selling items - AJ Book of Tips | by Authors, for Authors.
My opinion about your track - it is very good, just upload more tracks and one day your first sale will happen. And I read information in your portfolio about you are planning to make versions - 30 seconds, 1 minute and others, so it is right decision, and if you will have possibility in some of your tracks - make not only cut versions, make at least one LOOP version - it is nice opportunity for customers to use your music in more different ways, imho. Good luck with sales!