I never used any kind of these tools, so the tagline was also a bit confusing for me (i.e. I didn't know what the product was for judging from the tagline alone)

I'll give my humble vote to just "Showcase Everything You Create" – for me is shorter and more clear. The "You are" part reads a bit forced and vague.
The sub-headline could also be shorter, f.ex. "a place where your audience can connect with you through interactive widgets"

Disclaimer: I am not a marketer!

Other than that, the landing page looks good to me! Good luck!