As the original image 's page size is too large for its image size, I remixed it.
Source Yamachem
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
A seamlessly tileable pink background texture.
Source V. Hartikainen
A free seamless background pattern for use on websites.
Source V. Hartikainen
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Prismatic Hypnotic Pattern No Background
Source GDJ
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A free light orange brown wallpaper with vertical stripes designed for use as a tiled background on websites. An yet another background pattern with vertical stripes.
Source V. Hartikainen
A background pattern with a look of rough fabric.
Source V. Hartikainen
This one needs to be used in small areas; you can see it repeat.
Source Luca
A seamless texture of a rough concrete surface.
Source V. Hartikainen
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Prismatic Polyskelion Pattern No Background
Source GDJ