Some fun bits from backgrounds in Errant:

The three runes on the sword above the door are the logo from the comic Errant is a reboot of, Fan Dan Go.
Over on the right here among the graffiti, drawn faintly, you can see a picture of Crow's mask, and the word "CROW" is written a couple of times among some random tags, as well as Crow's slogan "NO KINGS", a few pages before Crow actually turns up in the comic.
The street sign over there on the left has some interesting bits. The crest for Joysgard is a white shield with three red stripes, because Joysgard is a settlement that grew around Joyous Guard, the castle of Sir Lancelot in Aurthrian legend. The castle was called Dolorous Guard originally, and he conquered it solo using a white shield with three red stripes which could be expended to give him super strength.
Like all places in real life Britain, Joysgard has an area postcode, in this case it's JY, so this part of joysgard is JY12 (this suggests Joysard is actually a ridiculously large city, honestly and the reason I wrote 12 at the time was that I grew up in a rural area an hour away from any cities, so my post code was 12 and I wrote 12 without even thinking...

) .