When I was a student studying Product Design BSc at Middlesex University we were frequently encouraged to post our work online; on platforms such as instagram, flickr and behance.
I posted the above sketch on my flickr profile and by pure luck an author came across it who decided it fit his book nicely. He got in contact with me, despite me being in China at the time, with the help of my parents scanning a high resolution verison of the image from a very old sketch book tucked away, the book is now in puclication with my sketch across the front and back cover.