You can probably just talk to the woman at the counter, if you bring in some of your work they would probably take a look at it.
The Cafe Owner, Jeff (also sometimes the cook in the kitchen) is probably the guy to make the decisions. I believe he is fairly easy to talk with. Grab a cup of coffee, ask to chat, and as someone else suggested, maybe have a couple of pieces to show him.
Thanks! Your answer is awaiting moderation.