Just a bear illustration.
The bear has been modeled with Maya and rendered with MentalRay.
The bear mesh is about 15k maya faces and the textures are 4k.
I used Shave and Haicut for fur.
There are four hair systems (inner head, outer head, paws, body) for a total of about 350k hair primitives with multistrand of 4.
The image has been rendered in one single pass with alpha and Z-depth, than post processed in Photoshop for enhancing contrasts and for correcting the colors gamma.
Tools: Maya, MentalRay, Shave and a Haircut, Photoshop