It appears to be a made-up combination of signs from different periods, with one of the signs flipped backwards.
The first sign appears to be a combination of the Neo-Assyrian forms of LÚ = "man" (Unicode U+121FD, 𒇽) with a left-to-right mirrored MUNUS = "woman" (U+122A9, 𒊩) attached to it. The second one is the old-fashioned (e.g. Sumerian or monumental Old Babylonian) form of AN / DINGIR = "sky, heaven, god" (U+1202D, 𒀭):
Cuneiform signs LÚ (LU2), MUNUS / SAL and AN / DINGIR in their Old Babylonian and Neo-Assyrian forms.
There's probably some nice symbolism going on there, but it's not actual historical cuneiform writing.
Ps. The signs in the table above are from the free Unicode cuneiform fonts "Akkadian" and "Assyrian" by George Douros, which quite closely resemble the sign shapes seen in your poster. In fact, while the match is not exact, the resemblance is so close in various small details (e.g. the lengths and positions of the diagonal wedges in AN) that I'm willing to bet that they're both derived from the same source. That common source might be some sign list or an older cuneiform font, possibly one of those mentioned in the introduction to Borger's Unicode cuneiform sign list.
Besides the fact that the AN sign is from a different period than the others, another clue that it's taken from a different modern font (or sign list) is the fact that its wedges are drawn with hollow heads, rather than filled as in the first compound sign. The choice of using filled or hollow wedge outlines when drawing cuneiform signs on paper is a purely arbitrary decision that doesn't reflect the actual historical appearance of the signs on clay in any way. Some assyriologists just prefer one style over the other, while some may use both according to some specific rule, e.g. using the hollow outline variants for missing and/or damaged signs that have been reconstructed based on the surrounding context.
Written on clay, the signs would look something like this:
Also, a telltale sign of the MUNUS component having been mirrored is the reverse horizontal wedge (i.e. with the wide end on the right), which almost never appears in any normal cuneiform signs. To write such a wedge on clay, you'd need to either turn the stylus backwards and hold it in a really awkward way, or else temporarily rotate the whole tablet by 180°.
Such backwards wedges do appear in some complex historical signs composed of multiple mirrored parts, such as dalhamun4 = AN+NAGA×4 — i.e. the signs AN and NAGA written together four times as a 4-way symmetric cross — found in a lexical list of deity names as an epithet (or, perhaps, better described as a fancy calligraphic emblem) of the storm god Adad. Such signs would've been quite awkward to write, explaining why they rarely occur in normal cuneiform text.
The cuneiform sign dalhamun4 = AN+NAGA×4 as it appears in a copy of the "An=Anum" lexical list of divine names (tablet BM K.4349). Original photo © Trustees of the British Museum, released under the CC By-NC-SA 4.0 license.
It's also possible for a Winkelhaken or a short diagonal wedge attached to the tail of a horizontal wedge to look somewhat like a reverse horizontal wedge in some renditions of cuneiform (particularly when drawn on paper; the difference tends to be more obvious on clay), and such combinations do occur fairly often. But the left-pointing triangle in the poster is pretty clearly a head of a horizontal wedge, just reversed, not a Winkelhaken.
BTW, as noted above, assyriologists do have more or less systematic ways of representing such compound signs. The first sign in the poster could be written e.g. as
|LU2+MUNUS@h| in ATF notation. I'm not aware of that particular sign combination having ever been attested in historical sources, however.