Digitally-colored version of my "Woodland Creature" sketch, which can be found on DeviantArt:
http://lorddominic.deviantart.com/art/Woodland-Creature-Sketch-461116931
Another random creature design. This one is vaguely kangaroo-like but suited to the forest. He'd be pretty good at climbing trees.
I tend to sketch these random creatures when art-blocked. There's not a great deal to them backstory-wise.

(Search tags referring to real-world animals are based on comparisons left in the comments here and on DA and don't necessarily reflect my influences in the design.)