While it could be a Siberian cross, it's no Elkhound. Size aside, the head and body are much too long and lean (Elkhouds are much more cobby and smaller). As I said, I'm pretty sure it's a Tamaskan as the breed is proving popular for therapy dogs. Then again, it could just be a Husky/GSD cross... :D

The Tea Party also has resonances of Alice In Wonderland to me, either half-asleep or more than a little mad.