The Yamari aspect of Yamantaka has a human face with three eyes, bared fangs and orange hair. The Vajrabhairava aspect has at least one buffalo head.
Undated (circa 15th century?, Tibet), Rakta Yamari, gilt metal with cold gold and pigments, private collection, photo on HAR
Red Yamari with one head and two hands, standing in embrace with his consort atop a human victim lying on the back of a prostrate bull. When his right arm is raised he usually holds a stick tipped with a human head, and has a skull cup in his left hand. She holds a skull cup and a flaying knife and wears a bone apron, he wears a tiger skin loin cloth and often has a half-vajra finial on his flaming hair.
Unlabelled (Tibet, Rakta Yamari, gilt metal with cold gold, pigments and stone inlay), private collection, photo on HAR
They may stand directly on the back of the male buffalo.
13th century, Tibet, Vajrabhairava (labelled ‘protector deity’, gilt copper alloy with pigments and turquoise inlay, private collection, photo on Tenzing Asian Art
In his sahaja form Vajrabhairava has one head and two arms and always stands alone. Easily confused with Yama Dharmaraja, he holds a flaying knife and a skull cup before his heart (rather than his right arm being outstretched) and steps on a male victim, often on a prostrate bull. In this case the animal has a dakini engraved on its rump. Vajrabhairava, naked and ithyphallic, is adorned with a garland of severed heads, bone ornaments and a skull crown, and may have the hide of an elephant on his back.
Undated, Tibet, Vajrabhairava, (gilt) bronze (with stone inlay), private collection, photo on HAR
We saw a very similar sculpture dated 14th century (see here: Sotheby’s).
He has 9 heads, 34 hands, 16 legs, his main hands holding a flaying knife and a skull cup, the top ones holding an elephant hide behind his back, the others have a variety of peaceful and wrathful implements. His right legs are bent and would have been crushing Hindu gods and mammals, his left legs are stretched and would have trampled gods and birds. In this case he has three rows of three heads, the top one is Manjushri’s head.
16th century, Tibet, Vajrabhairava, gilt metal with cold gold and pigments, private collection, photo on Himalayan Art Resources, item 33545.
18th century, Tibet, Vajrabhairava, gilt copper alloy, private collection, photo by Sotheby’s.
Alternatively his heads are arranged in a row of seven, plus one angry head, plus Manjushri’s at the top. Note the two figures seated at the front of the lotus base, one of them with four arms.
15th century, Tibet, Vajrabhairava with consort, gilt bronze (copper alloy) with cold gold, pigments and turquoise inlay, private collection, photo by Christie’s.
The same form in embrace with his consort, who holds a skull cup and a flaying knife.