Kaigel appreciating the weather more than most. As far as his expression goes, it was actually kind of difficult to get his mouth to achieve that specific shape.
One purpose of this render was to test out a procedural cobblestone texture that I had developed which also included rain puddles. I will have to return to it at some point since there are some visual artifacts in the reflections, but it otherwise works well.
Made in Blender, rendered with the Blender Cycles Render Engine.