birth of venus, the painting???

Question

in the birth of venus there are to people over looking venus floating to shore on a clam shell.
there is two on one side of her and just one woman on the other.
who are those three people?
and why are they overlooking venus?

Answer 1

Aphrodite (or Venus, as is her Roman name) was born when the titan Chronos castrated Uranus, his father, whose severed genitals fell into the sea and fertilized it. Aphrodite was born from the foam and by a giant cockle was taken to shore at Paphos on Cyprus in the Eastern Mediterranean

The figures around the Venus were nymphs and wind gods, the wind gods :Zephyr and Chloris used their warm breath the blow the venus to the shore, The Nymph is one of the greek goddesses of the seasons. She is spring she was to represent "birth"

I hope that helps

Answer 2

The West Wind Zephyr and Chloris fly with limbs entwined as a twofold entity: the ruddy Zephyr (his name is Greek for "the west wind") is puffing vigorously; while the fair Chloris gently sighs the warm breath that wafts Venus ashore.
The nymph may well be one of the three Horae, or ``The Hours'', Greek goddesses of the seasons, who were attendants to Venus.

Answer 3

http://en.wikipedia.org/wiki/The_Birth_of_Venus_(Botticelli)

the overlookers are described in this and named