There are two variants already, could be that more will follow. At the time of this writing I am working on the second ornament I am using this artwork in - I already published a preview to my facebook as a work in progress. I will publish them here as well, as soon as I am really satisfied with it.
Some people think it is a bit unusual for me to create work like this, but I do not think it is. First I love textures and as such I also tent to look at the stuf in /r/fractalporn on reddit. This would fit right in there. Besides that, I created this as a possible part of an ornament. In my ornaments I try to use opposites. Nature and the city fits right in there.