Saturn. It is also associated with constraints and wisdom. Saturn was the Greek god Kronos who was killed by his son.
Venus represents Aphrodite/Venus who was born when Uranus/Ouranos's penis was cut off in Greek mythology
in Greek mythology,it is Gaea,the Greek personification.In Roman mythology,it is Terra.
Earth
The bear or bear claw represents strength and resiliance.
Venus
In mythology Adonis is the symbol of male beauty. In Greek mythology, he is a handsome hunter and the god of beauty and desire. He represents rebirth and fertility.
The only planet whose name in English is not derived from Greek or Roman mythology is Earth.
The planet Venus is the second closest planet to the sun. It is named after the goddess of love from Greek mythology. It is not inhabitable.
In Greek Mythology, Cronus was the father of Zeus. In Roman mythology Cronus was identified with Saturn.
Neptune
I would say either Aphrodite or Her son Eros
In Roman mythology, Mars (Ares in Greek mythology) is the God of War. War is also equated with bloodshed, and as the planet Mars has a red colour to it, it was named after the Roman god.