What the heck is that, I hear you wondering.
And it is a very good question to wonder to yourself.
Congratulate yourself for yourselfs fine wondering!
I, myself, also congratulate yourself for yourselfs fine wondering.
I also congratulate myself for myselfs fine post which led yourselfs fine wondering.
But all I did was use some artistic filters on another photo I took using those macro lens spacer things.
This time, a picture of a knot in my fence.