Sounds like you do have a good outline of what you want to write about. I might suggest an article or more on the kind of music you listen to. I always have my playlist playing straight into my brain via headphones, and maybe you like music too.
I was on the other end, buying articles from freelance writers for several years. My general guideline was to ask for practical factual articles but which also related the author's personal experiences with the topic with their thoughts and feelings. The personal touch makes it more interesting and relatable. I think you pretty much do this already, so I'm about out of thoughts here! Have a nice day!
RE: My Latest Project / Finding My Calling