Left to Right:
Venus, Saturn, Mercury, Mars, Jupiter
Venus: Rokushiki and Martial Arts Master. Capable of using Life Return to drain the life force of other people (this is why he looks younger than the other Gorosei)
Saturn: Rotation Paramecia. He is able to control the rotation of anything in the world, including the orbit of electrons in atoms.
Mercury: Mercury Logia (this one seems pretty agreed upon)
Mars: Swordmaster who is capable of sending slashes through physical objects without damaging them (IE slicing into the floor, not cutting the floor, then having the attack pop out from the ground to hit his enemy)
Jupiter: Plasma Logia
Venus having a Lucifer Zoan (lololololol) would be fun, and I wouldn't mind Mars having some War God Zoan or something. Thoughts?