I’ve been testing with a “quick” way to do character concepts that go beyond a single pose/render, so with this one I tried to do a little animation test as well with as little work as possible. The rig is just a 3 bone chain, plus a couple of shape keys for simple expressions.
The final animation:
The process is pretty much the same as the one used for a production character but the idea is to have everything done as fast as possible: Sculpt main shapes - Remesh + manual topology fixes - Multires sculpt to add detail - UV Unwrapping (semi-automatic) - Texturing - Rig + animation - Render.
Being able to stay in Blender for 90% of the process (Texturing was done in Substance Painter) definitely helps speed up things 
It’s obviously not meant to be the final model, and it’s definitely not meant for production but as a quick character concept I think it works pretty well, the whole process took about 8 hours.
Here’s some more shots with different lighting:
