Space Jockey's with tentacular legs, or multi knee joints

I was being inspired to think about the possibility of the space jockey having flexible lower limbs that might be serpentine or tenticular to some degree, although I wanted to look at the idea of adding firm joints to the tentacles. The inspiration came from stories about the ancient giants that the gods fought with in Greek Mythology and the image of a mythological character called Abraxas.

See: Reveries of Giants with serpentine feet etc