Rama
Thanjavur, circa 1830
You can read more about the tribhanga pose at Wikipedia.
From the Museum site: Opaque watercolour painting of Visnu’s seventh incarnation as Rāma. The green-complexioned god stands in tribhanga. He carries in his left hand a tall bow adorned with five small bells, a crescent-tipped arrow in his right. A quiver hangs over his shoulder.