I work for the site http://worldofumbria.net

It's an adoptable pixel critter site (in a magic/steampunk world)

I've been spriting for almost 10 years (4 of them spent at Dragcave.net )
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The Cu Sith are a fae legend, green wing eared dogs who's howl mean a woman in your village will be taken by the fae to bear children. (or some such story)

The concept is a little different on a cute adoptable site though XD

I tried to color the shiny/alt ones like grims <.<

"Cu Sith pups are are rambunctious, and will viciously attack anything unfortunate enough to be within their reach. They pose little serious threat to anything more than the size of their head as far as danger goes, though. Pups are abandoned by their mothers shortly after the initial birth and a couple of weeks of nursing to ensure they do not become needy and rely on the protection and assistance of their mother once they become fully developed. However, during the first week of being abandoned on their own, it is possible to capture a Cu Sith pup and treat it as a family pet.

The Cu Sith species sports an impressive set of winged ears that doesn't quit match their natural instincts nor their violent and fierce demeanor. Their coat allows them to blend in with grassy landscapes, allowing their predatory tactics to become even more effective than they normally would otherwise. If raised from a pup, and done so properly, a Cu Sith can become a great guard hound for a human child or even for a fully grown human's living quarters, as well as a skilled hunting hound, as their sense of smell is incredible."
(not my wirtting or concept, site stuff)