The new world atlas of artificial night sky brightness
Falchi at al have updated their atlas of artificial night sky brightness in a paper published 10 June 2016. You can read their paper at the AAAS site Science Advances http://advances.sciencemag.org/content/2/6/e1600377.
High res images are not as high res as the ones released in 2006 but hopefully we'll see more useful images in the near future. There is a zoomable map at http://cires.colorado.edu/artificial-sky but again the resolution is limited.