While on a search for something terribly specific, I ran across this amazing piece by Sara L’étrange. It has absolutely nothing to do with what I was looking for, but it is fantastic, and that is the kind of day it has been.
Sara L’étrange works almost exclusively with gel pen, and her artist statement has some really wonderful language about the nature of working with a medium that can’t be painted over, erased, or moved once it’s down. I really kind of love her take on it, it’s well worth a read.