Attribution
Do you know who made these?
Every other picture on this site names its artist. These are the ones that do not — contributed by somebody who liked them and could not say who drew them. They are shown as artist unknown rather than quietly passed off as unowned, and they stay that way until a person recognises one.
“previously credited to Muralry Magistrate · Uploader is not the artist”
How to work one out
Run it through the engines above. Yandex is repeatedly the only one that finds work reposted around Russian and eastern European sites, and TinEye is the only one that sorts by oldest — which is what points at an original rather than the most popular repost.
Look for the artist's own page — their Pixiv, ArtStation, Flickr or personal site. A booru or a wallpaper aggregator usually has the right name attached to the wrong link, and a credit is only as good as where it points.
Tell us, and say how you know. A guess that turns out wrong is worse than the blank it replaced, so an admitted uncertainty is welcome — it is the thing that invites somebody else to check.
Stuck? Ask the forum. Somebody who recognises a style at a glance may not be the same person who thought to look, and working it out together is usually faster than either alone.
Who has done this
213 plates here name an artist because somebody put them there with the name attached, or worked it out afterwards. If one of these is yours, or you recognise it, removal is a click away — you never have to prove anything to have your own work taken down.