A Nepalese tanka (hanging scroll) depicting the Bodhisattva Yamāntaka
Mineral pigments on cotton. Painting 50cm x 35cm approx.
Private collection Great Britain
 
Yamāntaka is seen as a wrathful manifestation of Mañjuśrī, the Bodhisattva of Wisdom, and in other contexts functions as a Dharmapāla. Though Dharmapālas have a terrifying appearance and countenance, they are all Bodhisattvas or Buddhas, meaning that they are embodiments of compassion that act in a wrathful way for the benefit of sentient beings.
 
Source Wikimedia.