It is an interesting idea and the site is very well executed -- nice work!

I guess one question I have is that it seems like there will need to be a linear relationship between the number of subscriptions sold and the number of designers working? Even if a design takes an hour and the turnaround guarantee is two business days, then that designer can only manage up to 16 subscriptions.

Given your pricing, that example may work out ok but then you'd have to pause new subscriptions until you can hire a new designer. Curious to hear what you think