However, if you wouldn't mind some helpful criticism:
1. I think the landing page could benefit from a product shot above the fold, especially to balance the tagline "An eBook about Unicorn Insults" so as not to confuse.
2. I want to click the big orange "button" at the top so bad. It looks like a button. Other buttons on the page have this same exact style. But, I can't click it!
3. The rotated "move" icon in place of the "close" button on the lightbox is rather confusing. I still see it as a move icon. Maybe it's just me, though.
4. I had no idea clicking on the unicorn at the bottom would load new quotes. Perhaps an indicator that this is the action would be helpful.
I'm sure you've done great work and have worked with many big-name startups, but, sorry, the landing page presents like amateur hour. Not to insult, just my first impression.