They're pretty clearly intended by the artist to be thematically related.
How so? The descriptions don't say much and the title of the pool is reacting to the Doctor being disgusting or perverted. These images don't seem to fit that name.
Yuri is divine. It waters the fertile soils of my soul.Yuri represents the peak of the civilization brought forth by the Ancients. You feel the same, do you not, Doctor?
