This project reminded me to always save a backup and use Adobe's cloud service to save your files in. I was nearly done when the power went out in my studio, tried to re-open the .PSD and it was corrupted! Tried different software, even looked for older versions of any temp file, nothing. Luckily I took screenshots of my progress so I worked from the latest one to match colors and go over the lines in a higher resolution. Done in Adobe Photoshop CC 2015.5 and WACOM Intuos 3.