Shōki is a featured picture candidate on the English language Wikipedia. It is also a whopping big file, it is 53.5 Mb. When I tried to look at it, it crashed my system. This is a JPG compressed file and this file is not usable for people truly interested in assessing the quality of restored pictures. The original file is much bigger.
Of interest is that in order to show the picture, a new template had to be created because of the dimensions of this Japanese woodcut.
When you load the full sized picture from Commons, you have to wait a long time before you get an impression of the picture. At the library of Alexandria, Open Source software was demonstrated that used an algorithm that builds up the image by first giving an outline and then adds details.
PS this is a much reduced version of the unrestored image.