I didn't make it myself, but it wasn't a stock either. I sketched her on real sketch paper, quite small (from the point of each ear, horizontally across the scan, was 4 cm in real life!) and scanned it at a high resolution, so the paper grain would be very pronounced and visible.Then I did a few tricks to make the lineart sort of "fit" the grain of the paper.Stupid me, though, didn't take a large enough scan. There wasn't enough paper texture to fill the entire image canvas! So it looked like this: [link] . So what I did was I synthesized a larger texture, using the parts of the scan that was clean paper, and then merged the Katia part of the sketch down onto it using a few other tricks.The other texture, the fur on her body, was an afterthought, made with the GIMPressionist filter.