1) wiki says about this one: Veve of Ayida-Weddo(=Ninhursag*) and Damballa (=Enki*), always depicted together. It acts as a “beacon” for the Loa, and will serve as a loa’s representation during religious rituals.
2) and 3) These are well known Nommo(s) depictions/symbols from Dogon tribe in Mali. To me it is interesting that they placed snakes instead of hands, and not on the place where the legs should be - like other cultures did.. Therefore I assume that these Dogon pictures are not trying to depict visually what these people seem to experience, but what we have here is rather the same as Benin sigils: a religious-evocative-magic symbols, an artificial intellectual construct for easier and more practical usage and remembering. This way they created a sigil of entity exhibiting a fish-type nature, and also entity connected to serpents/tentacles - at the same time. Maybe for a shamanic contact with the Nommos..
What is also interesting, is that wikipage of the Benin Veve symbols shows more of these sigils, and one of them, named Veve of Ayizan perfectly matches the sigil of Saturn, or the Solomon´s seal. The Benin tribes definitely knew how to cooperate with intelligences known as Jinn and how to practice a black magic of voodoo.
* = notes by uploader