I was uncertain if post here or in gimp resource, i believe may be a useful resource ,
then i decided that since i am a crazy Artist that believe his patterns ART i should post
(
Even if you are free to use as resource 
)
Series 1 Organic Texture from Italy 
I accidentally overwritten the original...oh well they work better as pattern at this or smaller size , i like larger because i may use also as "Effect Layer" ( opening the pattern as new layer) to add texture
Natural (yet modified to be seamless)

Same but with intensified and muted colours

Same pattern ,but even less realistic and more stylized

Ending with a almost abstract version

Again natural (but modified to be seamless)

and a more stylized version

now should pattern be squared or also rectangular patterns are fine ?
My are most rectangular and was missed a exception so

NEXT ORGANIC SEAMLESS PATTERN FROM CAMBODIA