Thank you for your attention.I did this picture for fun and didn't think about a prospective commercial use: some stock pictures used come from external sources and need the acceptance of their owner. So I tried to ask for their permission. Alas, I can't join the owner of the photo of the river, who left dA, and I can see now that the source of the castle is not legal. I'll change this last photo (this is easy, and will not really change the result), but for the river it is not so easy: it takes the main part of this workSo, I'm sorry, it is entirely my fault, but I can't give you my permission for a commercial use.