...and this is what came out. Done completely from scratch in GIMP. Well okay, the texture wasn' t of course. Speaking of it, it' s maybe a little too strong. What do you think?
The technique for this is really simple, yet genious(I think ).

Pretty cool! I was going to try yo recreate this to try and find your method, but GIMP mysteriously disappeared so I need to redownload it! What technique did you use?

The texture does look a bit strong and really grainy for some reason.

I like these Camo patterns! How did you create them?
I would add a little bit of blur to make it look less crisp/sharp if I were to use it as camouflage pattern.

Thanks. That sounds pretty weird Cyril...Btw, nice to see you over here, too

I' ll do a mini tutorial here. Remember this is just the way my .xcf is, there is probably a different and easier way to do it.
So, the process went about like this:

_Start with a dark green background.
_NEW LAYER-Solid Noise with x and y around 10 and on randomize. Then Colors-Threshhold and play around with the middle slider a little till you get a cool pattern. Color select the white and delete it. Alpha to selection and replace the black with brown.
_Same process with a NEW LAYER but fill it with a sandy color and copy the brown one, flip it once horizontally and vertically. Do an alpha to selection and delete those parts of the sandy layer. Set on COLOR.
_Same thing as last step but use orange.
_I then added the texture, shrunk and desaturated it and duplicated the layer. I set the lower one on BURN and the top one on OVERLAY, experimented with Opacitys. I guess you could skip this.
_New from Visible-Play around with Hue-Saturation. Most important here is to lower the saturation and lightness.
_New from visible-Gaussian blur by 5(I think it was 5). Set on Dodge.
_New from Visible-Unsharp Mask, played around with the settings.
_New from Visible-set on Screen 20%
_New from Visible-Black&White Gradient map-Set on Darken Only.
_Do the same step as at the beginning but use black and set on OVERLAY.

Done with the first version

For the second I just did a New From Visible and did a Tropical Colors Gradient Map. Gaussian blurred by 5-10 and set on Overlay 50%.

Your results kind of remind me of this tutorial I did. Psychedelic Background

There is a camouflage pattern maker in Gimp in File > Create > Patterns > Camouflage

Hey Oregonian, that IS a similar technique, interesting.
I didn' t know GIMP had something like a pattern maker, cool

Yeah, I've seen it before, but completely forgot about it. Thanks for reminding me!

I actually really like the heavy texture, SkyRoma! I think it turned out really nice!

skyroma: i think your camouflage patterns look better than the ones generated by the pattern maker. and i agre with mariawendt about the texture, gives it a bit of character.

Exactly! Character was the word I was looking for!

instead of using threshold you can also posterize your clouds to get a camo pattern