An attempt for cleaning up the original image in a few steps.
Source Lazur URH
A new one called white wall, not by me this time.
Source Yuji Honzawa
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
Prismatic Abstract Background Design
Source GDJ
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
The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保3年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The image depicts a seamless pattern which includes hexagonally-aligned gourds with BG in light-brown.
Source Yamachem
A white version of the very popular linen pattern.
Source Ant Ekşiler
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba