Any experienced artist would tell you not to do what they are doing though. It's less expressive and it's not creative. Yes they are doing it like a printer going downwards line by line (that's just a gimmick btw). I dunno. I just see stuff like this and I think, what's the point? Why not literally print out a picture since it's not showing any of the creators artistry either way. They've traced the outline of Kratos and now they are filling it in.