This picture is by request of
Yuber is a Black Knight from Suikodens I through III. He bears the Hachifusa Rune, one of the twenty-seven True Runes. ("Hachifusa" is generally either translated as "Eight-Demon" or "Eightfold".) As far as the people I've asked about it (and apparently, the Internet) know, the Hachifusa Rune has not been depicted in the games (or anywhere else), and so I decided to come up with a design for it myself (rather than having to come up with an Actual Background for the picture).
The full chart and list of fanarts can be found here, and my fanart project gallery is here.
ETA: Two in three days? The hell? Don't worry, it'll go back to being slow now.