Out of the five dhyani buddhas, Vairocana is the only one who may have more than one head. In his Vajrashekhara form he has four heads and eight hands but usually appears on paintings.
In his Vajradhatu form he has four heads and two or eight hands.
He always has a bodhisattva appearance and sits in the vajra position.
Both hands are held in the meditation gesture.
The above figure holds an upright vajra with the tip of his thumbs.
The hair from the four heads is gathered in a bunch topped with an ornament (half vajra or flaming jewel).
The above seems to be holding a disc hat matches his earrings.