As of today, Of Stars and Swords Vol 1: The Mad Lord is out on Comixology! It contains the complete first story arc for the comic, as well as some extra things like a new short comic and, importantly, updated art. To give you an idea of what that means for the art (and the lettering in most cases), Caroline put together a number of comparison panels that we've shared in the past few months, and I wanted to compile them all here for easy viewing.
Lastly, Volume 1 is the ONLY way to get this updated art. We won't be updating the webcomic or the previously released issues.