Pretty sure most wearfaces get posted on their g+ page:
https://plus.google.com/communities/116044221958390400240
I posted several there in the past (I'm Mike Cunningham) but they tended to be more minimalist/experimental than fullblown traditional watchfaces.
The last few days however, I've gravitated to wear picture watch instead of wearfaces though. It's more feature rich and it's got me excited about creating watchfaces again. They also have a g+ page where faces get posted but it's a much smaller community:
https://plus.google.com/communities/116270230212768114841
I posted this one yesterday:
It doesn't take advantage of any features that wearfaces doesn't have so it probably could be converted but I doubt I'll bother...