The periodic table of the elementals, the dewey decimal system and the finer points of VHS player repair.
Your UI design is laudable, the purchase pathway is relatively concise and your brand voice is engaging and authentic-ish. If you really want to get your CPM (pun very much intended) up you could run more A/B testing—I might try cutting the copy down even more and experiment with different call-to-action lines—but in general I think you're doing very well with your online marketing. I hope your day is going swimmingly (in spite of, you know, everything) and that you and yours are well. :)