The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Old China with a modern twist, take two.
Source Adam Charlts
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Almost like little fish shells, or dragon skin.
Source Graphiste
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Prismatic Basic Pattern 2 No Background
Source GDJ
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
From a drawing in 'An Old Maid's Love. A Dutch tale told in English', Maarten Maartens, 1891.
Source Firkin
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne