Eyes

What is the best way to symbolically depict "Mother Earth"? 

Well, place mountains, plants and animals between wide open eyes and vulva...Simple...

Decorated bone depicting slightly bewildered "Mother Earth", 6th - 5th millennium BC, Hagoshrim, Southern Levant.

Decorated bone depicting Mother Earth with a stern "I am watching you!" expression, 6th - 5th millennium BC, Neve Yam, Southern Levant...

Reconstruction of a stone palette depicting Mother Earth who...well...had enough and is ready for bed...6th - 5th millennium BC, Ein Zippori, Southern Levant...

This symbolic depiction of the Mother Earth later found its way to Upper Euphrates. Stele of Mari, found in a pit at the temple of Ninhursag...

Now remember this? 6th mil BC, Balkans. No eyes, but the "important" bit, plants growing out of the vulva, is there...Early Vinča Culture terracotta figurine from Jela, Iron Gate region of the Danube, Serbia, c. 5200 BC...

The oldest European one from Lepenski Vir is from c. 8000BC. Anyone knows of any Levantine examples from before 8000BC?

These Levantine Mother Goddess depictions are from this article:  "Iconographic motifs from the 6th–5th millennia BC in the Levant and Mesopotamia: Clues for cultural connections and existence of an interaction sphere"...

BTW, these guys were farmers, grain farmers...This is very important...So this Mother Earth is Mother of Grain...This girl

Left: Anthropomorphic vessel with breasts, Neolithic Lengyel culture (5000-3400 BC)

Right: Anthropomorphic vessel with breasts and grain ears (?) instead of hands, Chalcholitic Baden culture (3600–2800 BC) which developed from Lengyel culture.

Both from Central Europe...

I talked about this in my post "Femal pots from Europe"...