the Virgin of the Fountain was done by Felipe de Ureña, who was instrumental in the application of the Baroque style to Mexican churches, especially those along the silver routes north of Mexico City. He was commissioned to create this work in 1738 soon after the church had been expanded and remodeled by Miguel Custodio Duràn. The altarpiece is an example of early Baroque or Mexican Churrigueresque style, using estipite (inverted truncated pyramid) pilasters and decorative niches. The latter feature often leads scholars to give the piece a later date. The pose of the Virgin in the painting is static and folkloric and contrasts with the ornate geometry and animated statues of archangels. It is attributed to José de Ibarra . Other features of the interior of the main nave are interior pediments with black and gold mouldings and are decorated with paintings which are possibly done by Nicolás Rodríguez Juárez . The church also contains nine life-sized sculptures in wood, as well as other altars in Neoclassical and Plateresque styles. Over the main door is an enormous canvas of Saint Christopher and opposite this, next to the altarpiece dedicated to Francis of Assisi, is a doorway leading to the Medina Picazo Chapel, the work of architect Miguel Custodio Durán, which dates from 1733. This chapel began as the cell, or living quarters, of the daughter of colonial doctor Pedro López after she took her vows to become a nun. After her death, her brother had the cell restored and transformed into the current chapel. The entrance of this chapel is made of sculpted sandstone and was once golden, looking like an altarpiece flanked by somewhat flame, flame-shaped Salomonic columns. The undulations of the columns are repeated in the pinnacles above, which are topped by a crest bearing images of the sun and moon. The sun represents Christ and the moon represents the Virgin, who reflects the light of her son. The central section of the entrance is dedicated to a sculpture of the Immaculate Conception, above which there is a dove representing the Holy Spirit and a cross. The doors have a wooden grate that has been elaborately carved with Franciscan coats of arms and other decorative items. Inside the chapel, there are oils here done by Villalobos. These include the Visitación de María, Los Esponsales de José y María, La Adoración de los Pastores, Anunciación and La Adoración