This is a quick mock-up in inkscape --
https://i1.wp.com/sketch.kylerconway.com/wp-content/uploads/2017/02/Selec...
The suggested inspiration image --
https://68.media.tumblr.com/tumblr_m0pruykEM51rryvfyo1_500.jpg -- is a much different
ratio than the resulting wallpaper will be. I'm wondering if that causes problems for
this? Probably not if handled correctly.