Some reference art of Sierra, from the talented <a target="_self" href="https://34qucker.deviantart.com/" ><img class="avatar" src="https://a.deviantart.net/avatars/3/4/34qucker.png?3" alt=":icon34qucker:" title="34Qucker" /></a>. You should get some for your own character! He's having a sale at the moment, so check his page out!