The lovely image on the right, from Yoshitoshi's 100 Aspects of the Moon, makes me think of the High Priestess card. The ocean represents the subconscious, upon which she sits serenely, a rock replacing the throne one typically sees in this card. The overall scene suggests mystery, the unknown. I think it would also make a good Moon card.
Yoshitoshi chose not provide any information concerning these moon themed images. People living in Meiji-era Japan would have immediately understood the religious and cultural references in his works. Moreover, he preferred that viewers draw their own conclusions about the meaning of any given work.