Billie (Patreon)

Obviously this one's from the same years-old set as Rachel/Sal/Lucy.  

Typically in my front-facing comic strip work, shoulders end up being straight lines from the base of the neck to the tops of the arms.  No trapezius muscles, no deltoids, just a tube clipping through the side of a larger tube.  Sometimes the smaller tube rotates.  It's simple, it works.  

But I've increasingly become fascinated with how shoulder muscles work, and there's not a lot of opportunity for bare shoulders in a comic strip that takes place in fall/winter.  

And so in my private work I would often spend time sorting it out.  Check out that raised arm!