For now, here are several practice sketches of Hammett. When he is sleepy in the afternoon, he is a fantastic model. When he is deep in sleep, he holds poses like these for a long time.
He will hold interesting poses for a short time if I pet him on his tummy when he's sleepy. He goes onto his back with his paws at interesting angles. After that, he will sometimes settle into a pose which I call origami paws. He tucks and folds his paws in delightful ways.
He's a fluffy guy, so he offers a lot of opportunity to figure out how to capture that in a drawing.