It is commonly and wrongly supposed that all Celtic & Norse designs are ancient and therefore free from copyright restrictions. The truth is that new, traditionally correct designs often look as if they could be very old, but they are none-the-less intellectual property of the artist.
Use of copyright designs by anyone other than the artist requires permission in the case of personal use or a licensing agreement in the case of commercial use. All rights reserved.
For any commercial publication or use, a valid LICENSE from Vítor González is required.
I can provide publishing permission for non-commercial use, such as magazine and web illustrations - but only with authorisation and according to my terms of use. For Web Illustration, I need credit and web site link next to or near the image.