"The actual props, pillars or posts which separated the sky and earth are called toko in New Zealand, to'o in the Marquesas Islands and pou in Tahiti. In Rapanui tuu and pou are known, with pou meaning column, pillar or post of either stone or wood. Sometimes the word is applied to a natural rock formation with postlike qualities which serves as an orientation point. The star Sirius is called Te Pou in Rapanui and functions in the same way." (Van Tilburg)

Perhaps Venus and Sirius, the brightest objects in the night sky, stand like guards around the waters of the deep? The irregularity caused by Venus in this 2 * 7 = 14 glyph sequence might be a sign that we should read Venus and Saturn together.

Sirius is the Dog Star and Venus was connected with dogs.

The reason why Venus has a human body and not the stem of a plant is - I guess - that Venus is governing the rest of the celestial machinery. Vegetables don't act.

So I think that explains why this type of glyph - which obviously Eb7-15 could be a variant of - has a human body: