I'm assuming many of you have heard of The Award Tour. theawardtour.com
Anyway, at this point, Phil only comes out with two releases a year that consists of only 3 or 4 designs but they are all really quality designs. He has quite an established brand despite how little product he puts out and his stuff still sells out within a matter of 30 minutes.
My point is just to show that your amount of product truly doesn't describe you nor does the fact that you have your own url. I think there are so many factors that go into actually having a 'brand'.