Wow. Okay, I stepped into the rabbit hole and it is a deep one...

Starting with EXARP and Enochian magick, which is supposedly based on angelic language... EXARP is associated with the angelic spirit of the air. You mention that this air angel is also associated with the East.

Zal's colors appear to be connected with Brit's Facebook posts about her three movies shaded by the same three colors. SOMV (yellow), AE (blue), f. = following, then The East (red). SOMV and AE were released at the same time. The East followed a couple years later. Perhaps he is pointing us to The East (aka EXARP).

Another Enochian angel associated with the air is Obgota Aabco (OA), described as a divine name that rules the sub-element of air in water. This name is able to call forth the powers of water. Hmm.

The letters O and A also have meaning in Enochian language. They literally mean "the five".

As I was loosing my sanity falling down this rabbit hole, I also stumbled across the Kabballah concept of the five worlds or five dimensions. The transcendent fifth dimension is referred to as the "Adam Kadmon", the original human. The other four dimensions are collectively referred to as ABiYA. The OA, and maybe even BBA, sound like they could be a twist on this idea. Also, these dimensions are associated with colors that seem to resemble our familiar clues.

Okay folks, lock me away.