Alexander Kobulnicky paints pictures of molecules. Pictured above is heme, which is one ingredient in hemoglobin. The artist writes:
We know that molecules form the basis of matter, of the human body and of the natural world, but as neurology increasingly teaches us, they underlie feeling, thought and behavior as well. The boundary between sanity and madness is the subject of countless books, movies and artworks, but in a practical sense, the boundary between sanity and madness is often. . . just Thorazine (C17H19ClN2S).
Content warning: painting of a Viagra molecule.
Link via Make
for a description of Linus Pauling and Roger Hayward's book "the architecture of molecules". These are more straightforward deptictions, done in pastels, but still very nice to look at.