The "Roly Poly Bear" series shows this bear in a very playful mood, doing a complete forward roll, back to sitting up, anticipating his next move.  Grizzly bears, along with many other animals, are known to incorporate play in their natural behavior.  
"Playtime VI" shows a very popular pose, which I learned from a client, is a yoga pose, called the "happy bear!"  "Playtime VI", won 1st place at the Florida Wildlife Exposition. I often sell three prints framed as a long vertical or horizontal piece