'The Love Embrace of the Universe, the Earth (México), Diego, Me and Señor Xolotl'

These are my two favorite Frida Kahlo paintings. The one above is Self-Portrait with Bonito, where she appears to be mourning the loss of her father, from 1941. The painting below - strong on symbolism - is from 1949: El abrazo de amor de el universo, la tierra (México), yo, Diego, y el Señor Xolotl.

In addition, two photos of Kahlo I particularly like (they are cropped):

