Hello does anyone know of anyone I could contact or where I could look with regard to an explanation of the painting on the front of the Aryeh Kaplan Reader by Rabbi Aryeh Kaplan himself?
Rabbi Aryeh Kaplan was among many things a painter. He mentioned this in his book Jewish Meditation.
At the thirtieth anniversary of his passing, his son started a Facebook page in order to raise money and the like to fund a Sefer Torah in his memory.
On that Facebook page he also posted different pictures and paintings from his father. Here is the post of the [seemingly] original copy of that painting. Maybe he’ll answer you through Facebook?
(It’s no longer an active Facebook page, as far as I can tell)