When you mix up Neuroscience, MRI (Magnetic Resonance Imaging), and other types of medical imaging , and some knitting, you get some incredible pieces of art.
What you see, in the second image is a hooked wool rug with axial brain slices, from an MRI.
I do believe that science and art, is one of the best ways, to popularize science, because it can enhance curiosity.
Those pieces of art are amazing, I highly encourage to visit the original website where I get those images to see with more detail those pieces.