I know that almost all people if want to paint something dark and connected with Indian gods and goddesses chose Kali. It would be quite too obvious to me, especially that lately I got interested in other deity.
Media: watercolor, ballpen
Dhumavati (Sanskrit: धूमावती, Dhūmāvatī, literally "the smoky one") is one of the Mahavidyas, a group of ten Tantric goddesses. Dhumavati represents the fearsome aspect of Devi, the Hindu Divine Mother. She is often portrayed as an old, ugly widow, and is associated with things considered inauspicious and unattractive in Hinduism, such as the crow and the Chaturmas period. The goddess is often depicted on a horseless chariot or riding a crow, usually in a cremation ground.Dhumavati is said to manifest herself at the time of cosmic dissolution (pralaya) and is "the Void" that exists before creation and after dissolution. While Dhumavati is generally associated with only inauspicious qualities, her thousand-name hymn relates her positive aspects as well as her negative ones. She is often called tender-hearted and a bestower of boons. Dhumavati is described as a great teacher, one who reveals ultimate knowledge of the universe, which is beyond the illusory divisions, like auspicious and inauspicious. Her ugly form teaches the devotee to look beyond the superficial, to look inwards and seek the inner truths of life.
Dhumavati hardly has an independent existence outside the Mahavidya group. There is no historical mention of her before she is included among the Mahavidyas. As a goddess of poverty, frustration, and despair, Daniélou associates Dhumavati with Nirriti, the goddess of disease and misery, and Alakshmi, the goddess of misfortune and poverty. Kinsley adds another goddess to the list: Jyestha. The Vedic goddess Nirriti is associated with death, decay, bad luck, anger, and need. Hymns emphasize offerings to keep her away. Like Nirriti, Dhumavati is associated with unpromising things and hardship. Jyestha, also an early Hindu goddess, has similarities in iconography with Dhumavati. Like Dhumavati, she is dark, ugly and is associated with the crow. Jyestha is described as being unable to tolerate any auspiciousness. Also like Dhumavati, Jyestha dwells in quarrels, inauspicious places, and has a bad temper. Lakshmana Desika, the commentator on the Saradatilaka-Tantra, identifies Dhumavati with Jyestha. Both Alakshmi, the sister and antithesis of Lakshmi (Shri), the goddess of wealth, luck and beauty, and Dhumavati are described as old, carrying a broom and having a crow banner. Both symbolize hunger, thirst, need, and poverty.