Finding your target market will help you do everything else!
I'm not familiar with your target market since that's about the furthest thing away from my target market, but I think you're on the right track.
Find out what they are reading and listening to as well!
I'm submitting my items to blogs and things and it's been working well for me.
I'm checking out national brands that my target customer frequents and taking note of trends, price points, and successful branding.
Find out what they need and their problems and then figure out how to solve it for them...
So my target customer is most likely young, in college, liberal, broke, loves art and literature and they feel the need to express themselves or make a "statement" with their appearance...
My shop offers low priced pop art/pop culture jewelry.
I'm pretty new too, but I hope this helps!