Q is not saying an alien attended a party as such in 1972 and fit in due to everyone else wearing surrealist heads, because Marie-Helene's hands are normal.

In the Q photo, the center two white dots are her eyes seen through the translucent mask as highlit by the camera flash; the two white dots just outside are the eyes of the goat mask, which appear to be formed of jewels; and the two larger white spots are ornamentation that probably represents nostrils. This is clear from comparison to u/MAGAthinker's link.

What remains to be significant in your discovery is that the shape of the goat head, if the white nostril spots are interpreted as the main eyes, is a close match to the shape of an alien grey head. While it's not zero, personally I find this of low significance because I don't know of a goat/grey symbolism connection and because the resemblance is not that consistent.

Not everything that comes to mind is a literal connection, though some connections are perceived by us to count as local warnings to us and our circle. But there is enough overt symbolism to focus on that we don't need to presume intent from a perceived symbolic match of less than strong correlation. Here are some of the overt issues: 1) Owl means Sofia (wisdom), Y head (goat) means Baphomet (devil), these two words are atbash code for each other indicating a dualism. 2) Gold means idolatry. 3) Q uses "/_\" to mean the illuminati with focus on Saud, Rothschild, and Soros, with Soros having replaced Rockefeller. 4) He implies that the evils of Saud (and of North Korea and Iran, which may be connected to it) were neutralized early and the effort is on the other two families. 5) He instructs directions where research can go, namely finding another Y head covered in gold. Maybe we should follow the research clues given before putting much weight in our own.