As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Prismatic Abstract Background Design No Black
Source GDJ
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A bit of scratched up grayness. Always good.
Source Dmitry
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Alternative colour scheme for the original floral pattern.
Source Firkin