Number five from the same submitter, makes my job easy.
Source Dima Shiper
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
Source Firkin
Abstract Ellipses Background Grayscale
Source GDJ
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
An alternative colour scheme for the original seamless texture formed from an image on Pixabay.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ