Note: Some info gathered, courtesy: Wikipedia.
As Daksinakalika, Kali appears in her most fearsome aspect and is the most widely worshipped. In this aspect, she is shown as dark, four-armed and wearing a string of human heads with blood still dripping from them. She is three-eyed, with one eye in the centre of her forehead. She stands on the chest of Shiva and is encircled by his worshippers.
The picture of a bojra (country ship). Pic courtesy: link.