Watercolor #1477
 Colorful  CC 0

Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.

Source Ractapopulous

Abstract Water Texture (Seamless) #890
 Water  CC BY-SA 3.0

An abstract texture of water. It's not perfect, but will do. You may download if you like it.

Source V. Hartikainen

Wheat #1695
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Vines #1693
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Spotty Pink Background (Seamless) #1236
 Pink  CC BY-SA 3.0

A free seamless background with pink spots.

Source V. Hartikainen

Blue & Fissure & Cube #1702
 Wall  CC 0

Background Wall, Art Abstract, Blue Well & CC0 texture.

Source Ractapopulous

White Well & Fissure #1701
 Wall  CC 0

Background Wall, Art Abstract, white Well & CC0 texture.

Source Ractapopulous

Seamless Wood Pattern #889
 Wood  CC BY-SA 3.0

A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.

Source V. Hartikainen

Low Contrast [email protected] #864
 Dark  CC BY-SA 3.0

A smooth mid-tone gray, or low contrast if you will, linen pattern.

Source Jordan Pittman

Textured [email protected] #868
 Stripes  CC BY-SA 3.0

A lovely light gray pattern with stripes and a dash of noise.

Source V. Hartikainen

Pink Clouds Background #1230
 Pink  CC BY-SA 3.0

Actually, there's no clouds in it, but I think it looks quite nice.

Source V. Hartikainen

Egg Shell #861
 Light  CC BY-SA 3.0

It’s an egg, in the form of a pattern. This really is 2012.

Source Paul Phönixweiß

Pattern #1476
 Paper  CC 0

Pattern Background, Texture, Photoshop Structure style CC0 texture.

Source Darkmoon1968

Scallop #1690
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Light Paper [email protected] #836
 Paper  CC BY-SA 3.0

More in the paper realm, this time with fibers.

Source Jorge Fuentes

Fleur #1675
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Multispirals #1687
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Cube Well & Blue #1699
 Wall  CC 0

Background Wall, Art Abstract, Block Well & CC0 texture.

Source Ractapopulous

Blue & Dark Well #1703
 Wall  CC 0

Background Wall, Art Abstract, Blue Well & CC0 texture.

Source Ractapopulous

Skin Side [email protected] #848
 Light  CC BY-SA 3.0

White fabric looking texture with some nice random wave features.

Source Hendrik Lammers

Pattern & Light #1619
 Wall  CC 0

Fence. CC0 License.

Source Unknow

Parket #1478
 Wood  CC 0

Parket & Wood CC0 texture.

Source Unknow

Waves #1694
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Tri-weave #1692
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Faded Diagonal Stripes #1001
 Stripes  CC BY-SA 3.0

Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.

Source V. Hartikainen

3D Wood #1475
 Wood  CC 0

Basket Fibers, Basket Texture, Braid Background style CC0 texture.

Source 1A-Photoshop

Square Flower #1691
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Green and Yellow Lines on White Background #1000
 Stripes  CC BY-SA 3.0

A seamless pattern with green and yellow diagonal lines on top of a white dotted background.

Source V. Hartikainen