This was one of the creatures I designed for Beastlink a game by GSG through Efecto Studios.
The Polar Bear was one of the titans or larger creatures. It's meant to be an ice powered tank creature. The silhouettes proposed initially were much more hybrid, but the design ended up being closer to an actual bear, with modified proportions. A lot of care was put into the anatomy, so the icicles growing on it would not obstruct movement when rigged.
The final model was made by Juan Camilo Ovalle https://www.artstation.com/juancamiloovallebuitrago