I stumbled across the folder where I saved my first substance today. I'd been looking for it for a while, remembering there were a couple techniques I'd picked up from the tutorial I could use for another project. As I looked at it again, I decided it would not take much to improve it a bit, while I organized the graph. Usually, the tutorial is just a starting point for me. I spend an hour or so blocking out the tutorial version, and then a day or so tinkering with it and adding my own personal touches. I also tend to go back to old projects and see if I can apply things I'd learned since creating them. In that sense, all of my art is work in progress.