I posted a cleaned up copy on forum #64735
(How would you improve Konachan?) to get more eyes on it.

I did an extensive grammar cleanup and slimmed it down as it was very wordy (TL:DR).

I gave it a lighter touch as the language was a rather heavy read.

The image guide is now refocused primarily on Image quality (we had some mission creep). The image content requirements are spelled out in the upload guidelines, although I kept all the image links you provided and also included the links from the upload guidelines for prohibited images to the wikis. Most of these wikis will need a little cleanup - I will take care of that later.

It is always easier to be an editor than the writer!

If Wires and VF approve, I can move it over to the wiki page.