The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A free background tile with a pattern of pink bump dots. This background tile is sweet! Moreover, it's designed for use as website backgrounds.
Source V. Hartikainen
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
There are many carbon patterns, but this one is tiny.
Source Designova
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
Geometric triangles seem to be quite hot these days.
Source Pixeden
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
The image a seamless pattern of a wire-mesh fence.I want you to use this pattern as a lower layer.
Source Yamachem
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Remixed from a drawing in 'Some account of the Worshipful Company of Ironmongers', John Nicholl, 1866.
Source Firkin
Prismatic Groovy Concentric Background 4
Source GDJ
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova