The site design at least is very beautiful, congratulations! I especially like all of the extra content you've added, the store, the "freebies", etc. My only idea to make it even better would be eventually writing some kind of subtle animation into the monster, or alternating the monster for different sections of the site.

To pay HN back for all the feedback and buzz, consider writing up a blog post about the process, and how sales and marketing go. I, at least, would love to read about it and learn from your experience.