Welll I guess I have to correct myself
I looked at the product page again and there is a notice:

""Another important note to avoid further misunderstandings:
There is a note on all texture maps with my copyright on it. It would be very nice if you could leave it there (when selling your final product), but you don't have too! It's up to you - but as I wrote: It's a nice gesture if you leave it, but if you don't want to, that's fine and you are free to remove the copyright tag (but include it in your read-me at least)! ""

Apparently I didn't read enough - not sure how I managed to miss that, my apologies!!

I am:  aka Velocity3d