Lovely pix of a beautiful pup.
Our daughter and her partner last year got a northern (Canada) rescue dog as a pup. Recently, the vet says he appears to be part husky and part greyhound...with a dash of Weimaraner thrown in the mix, which would make sense from his appearance and the area where he is from. Lot's of sled dogs up there, which seem to be hybrids, with husky as the base component. Whatever he is, he's tremendously lovable and always moves at the speed of light and usually his feet seem to be about two feet above ground as he runs.
I know exactly what you mean...the secret to good focus with an over active pup is take pix of them when their sleeping.