AVP Galaxy uploaded the Predator 2 shooting dossier on November 21st 2020, and this was one of the storyboards featured.
(See Predator 2 Shooting draft dossier from https://www.avpgalaxy.net/2020/11/21/want-some-candy-alien-vs-predator-galaxy-presents-the-shooting-script-of-predator-2/)
c) This led me to make the connection between the two. Here the dancing figure with raised linked arms and head bent forwards becomes the skull with linked horns making them look linked like a doughnut ring. The legs become the long fangs
d) This would suggest that this human figure sitting with arms folded and head bent forwards becomes the skull with the almost ram horn like brow ridge.
e) Figure in a ring on the top left becomes a skull
f) Two figures on the lower left becomes a wide skull
g) The kneeling leg of the upper angel becomes the alien head, while here the sitting human figure below becomes the large skull