There are lots and lots of good people here, and I'd hate to have to list them all. But with a specific focus on who we're showing to the outside world as examples of the work being done here I think there are two accounts that stand out as both excellent and accessible:
Comics: @haedre
Music: @breakoutthecrazy
Neither one spends much time talking about Steem, and intimidating fresh eyes with things that we all take for granted but are super-complex to outsiders. They just produce consistent top-level work.
Now, if you're going to take a more storytelling approach, rather than just looking at the accounts, there are two singer-songwriters who I think would be great choices: @silentscreamer and @lillywilton. Both of them have great narratives - Marica about finding consistent support for her work here, and Lilly about discovering for the first time a great and welcoming audience for something she really wanted to do.
What a wonderful choices. I'm glad that there are various wonderful artists! That's what it's all about.
Good luck in the contest! 🙂Thank you @tcpolymath for your participation and support! 🙏