Here's an old life drawing I ran across from my student days. It felt sooooooooo good to get a nice drawing back then (still does, but practice makes the good ones come on a more predictable schedule now.).
Look I even did a little value thumbnail before I began (what a good student). :)
Here's an updated version of the concept work for most of the races in my web comic Everyone Does Their Chores in Polyuna. You can view and help support the comic (which at the time of this post still needs a big update scheduled for summer 2016) here: Jacobromeo.com or here: Polyuna.com
Here are a few of the concepts for the races in my online comic Everyone Does Their Chores in Polyuna. I should have an updated version with many more races soon. You can view the comic here: Jacobromeo.com or here: Polyuna.com