A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
More in the paper realm, this time with fibers.
Source Jorge Fuentes
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Prismatic Groovy Concentric Background 5
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
A seamless pattern formed from cross 4. To get the original tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin
This one is amazing, truly original. Go use it!
Source Viahorizon
Formed by distorting a JPG from PublicDomainPictures
Source Firkin