Put the login gate after you generate a ring, not before. I bounced immediately because it's not worth creating an account without really knowing whether I would be interested. Let potential users invest a little time and start dreaming, so you can take advantage of loss aversion to get signups. Probably also worth adding an option more lowkey than creating an account (which I assume includes setting up a password etc.), like a newsletter that aggregates the best designs every week.
Also, it wasn't obvious to me that the examples in the "Need inspiration?" section were generated, or that I could tweak those designs.