And there appeared a great wonder in heaven:
a woman with a crown of twelve stars
upon her head. —Clothed with the sun. —The moon at her feet (Apoc 12:1).
Langley Concetto I: Nuestra Señora de Guadalupe, scaled to 16'x10' Altar Retablo, pencil and ink heightened with gouache.

a woman clothed in the sun
(Below) Langley Modello II: The Virgen of Guadalupe, graphite and ink with watercolor on paper 36"x20.25" cartoon for transfer to 16'x9' canvas
(Below) Langley Capriccio: Virgen de Sol, Pencil with watercolor wash, heightened with white chalk on paper.
This Langley pencil drawing with watercolor wash heightened with white chalk reflects the artists fascination for one of Velázquez's earliest known works of about 1618 and its relationship to the 1531 Image of The Virgin of Guadalupe, on account of which nine million Mexicans were baptized by 1550 and which even today continues to be venerated as a miraculous icon in its original setting.
A curious aspect of this drawing is the resemblance of Virgin to the wife of the artist and of the angel upholding her garments to the artist himself.
The Velazquez painting of "The Immaculate Conception" which hung together with its companion painting, "Saint John on the Island of Patmos" was first recorded as housed in a Carmelite convent in Seville. The Carmelites were particularly devoted the Virgin Mary under her title of the Immaculate Conception and to its doctrine.
These wonderful images are part of a broader pictorial tradition bearing an interesting correspondence to the book of Revelation. A well developed exploration of this theme can be found in "Visions
from Patmos-Tenochtitlan: The Eagle Woman", by Jaime Cuadriello in a Beautifully illustrated book on Our Lady of Guadalupe entitled Artes de Mexico.
Visions of Guadalupe : http://www.inside-mexico.com/books/ourladyofguadalupe.htm