Fog Heron Studios is the studio name for Erin Rosenzweig, who also goes by the pseudonym Armesan.  She started selling her work independently in 2015 after years as a graphic designer for news stations and magazines.  She has made original creature designs for art dolls, resin figures, pins, charms, and jewelry.  She has also done work for indie tabletop rpg books and indie board and card games, as well as logo design for individual clients.  

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Some of her work has been featured in several group shows for Clutter Gallery as All Nighter Studios, and she has donated some of her illustration and sculpture work to charity, including Games 4 Good, a fundraiser for salamander conservation, and Summer Games Done Quick in 2024.