Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Prismatic Abstract Background Design
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Looks like an old rug or a computer chip.
Source Patutin Sergey
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Basic Pattern 2 No Background
Source GDJ
A bit of scratched up grayness. Always good.
Source Dmitry