An attempt for cleaning up the original image in a few steps.
Source Lazur URH
It looks very nice I think.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
From a drawing in 'Danmarks Riges Historie af J. Steenstrup, Kr. Erslev, A. Heise, V. Mollerup, J. A. Fridericia, E. Holm, A. D. Jørgensen', 1897.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
This could be a hippy vintage wallpaper.
Source Tileable Patterns
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
A bit strange this one, but nice at the same time.
Source Diogo Silva
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
This was formed by distorting an image of a background on Pixabay.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
This was formed by distorting an image of a background on Pixabay.
Source Firkin
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin