Linguistic Archaeology: Where Ereshkigal, Minotaur, and Hercules converge

Ereshkigal is depicted holding the upper parts of Ankh in each hand. Combined, these objects represent the slave harness or the harness of oxen teamed together.

It is also a precursor pictogram for the B rune. So she is both ending slavery, and modernizing the written language by separating the old pictogram into new runes. Given the stem present in each rune, it looks like a bow in each hand: the broken pictogram now individuates as the runes ku (ku-ku) or rather th (th-th), though potentially both as ku and th (written upwards as ku-th depicting an uneven harness break and individuating each into seperate runes). Given proto-runic runes were written vertical on a common staff, this could mark the moment she breaks the staff and forms individual letter runes of modern horizontal runic.

They also possibly symbolize the archer's bow. So... twin bows made from the wood of the slavers harness from which she freed herself, or twice archery tournament champion.

These are considered for early babylonians (3200BC) to be the ud rune meaning 'day' (hence the similarity to the boat of the sun god Ra). So she divides two days into seperate parts, so she is probably seen as the goddess of the night.

They could represent long timber ships with round sails.

The individuated runes might have individually evolved into or from the oxen or cow head (flip the rune 180 degrees and it looks like a cow head pictogram). This has other potential links of relevence -

The Minotaur: If the bull head symbolizes the Mkun Royal Family and Crown Prince Otar Mkun (Mkun-otar-kuar) in particular she is holding the heads of two of the Mkun in her hands.
Hercules (Hkuarckulkus): which looks like 'prince-sickle-jar' and Hercules sacrificed two of his own crew feigning outrage at their deaths to get his hands on a pair of Mkun Princes on a Minoan island without a fight.
Ereshkigal (Kuarkushkukugarl): prince-jar + hkuku-garl
     Kuarkus: carcass?
     Garl: a powerful leader

So holding the heads of two Mkun Princes makes her a powerful leader?

Its all in the interpretation but suddenly it looks like a bunch of backwards Bronze Age cultures went out of their way to decapitate the Celtic peoples that dominated the entire Mediterranean along with the Mkun Royal family on repeated occasions.

It says... Civilization, Religion, and History as you know them are a lie built on Genocide of the Celtic peoples whose territory you occupy.