Please use them anywhere, even cut them up to make your own commercial textures terrains or levels. You may also post them on your own websites -just don't charge people for them though any derivative works you can do whatever you want. Same applies for any of my free textures. Glad to see them used.

Thanks bupaje!
These will be of good use.

Wow! those are some great textures! I could really use theM!

I really haven't seen textures like this before. You seem very talented there Bupaje. Man, I wish I could do this .