From what I'm seeing, they are a reseller; so they will be certainly selling other makers' products but also as a marked-up price (typically but not limited to shipping costs).

What I would do is to look for any logos and search for the maker by name; might save a bit of money to go to the maker as direct as possible.

My Fetish Store is a well-known scam and not just a reseller and most of the pictures are from makers that don't exist anymore, no longer accept commissions, or mask models that were discontinued. There has been multiple callouts warning about them stealing pictures as what you will get is poor-quality bootlegs, even makers called them out on it (here an example). They even have some of my own masks listed for sale which they clearly can't have.

Reminder that kig makers are just hobbyists creating masks as a side business, they aren't factories mass-producing them so you won't find anything legit on such sites.