In the context of this artwork, explain the Materials of the Description.
In Saint Francis in Ecstasy, Bellini used a combination of oil and tempera paints, perhaps having been under the influence of Antonello da Messina.The painting shows the influence of Andrea Mantegna, who was the painter's brother-in-law.  It is signed IOANNES BELLINVS on a small, creased tag visible in the lower-left corner. The original size of the painting was cut-down from the top side; this is evident because the painting continues completely to the end of the panel. However, the original painting would not be much larger than the present by estimation. Saint Francis in Ecstasy was directed towards Art Museum Metropolitan for detailed cleaning and highly technical assessment of this painting by Scientists, Art Masters and Conservators, the painting had evidence of underdrawings. The major findings such as compositional modifications, fingerprints, brushwork, sketching and the exposure of certain innovation belongs to the students of Bellini, i.e. Titian and Giorgione. Though it has been cut down, it has otherwise been well-cared for since its creation.
Scientist Saint Francis Antonello da Messina Titian Andrea Mantegna Metropolitan fingerprint Giorgione