Yes, so now my first comment is actually obsolete :)

Apart from thanking you for providing the community with many new textures (like your two woodtex-packs 1 and 2) I feel like asking you for more clouds at this point.
#1 & #2 are very geometric, #3 & #4 look like pretty populated plasma renderings done with something like the standard "The Gimp" plugin .. some more sparsely populated skies might be a good idea too, if you're feeling up to it ...

the 1 and 2 are geometric for the texture is seamless.

Yes, you can.

But set a warning, they are not included in release.

thats not a problem. my script is fixed function via a var. The user can choose if he wants to use custom content.