This pre-Renaissance artist used perspective techniques to communicate a sense of realism. His frescoes had a great effect on art during the Renaissance.
Who Is this artist?
А
Andrea del Sarto
OB.
Donatello
ОС,
Glotto di Bondone

i believe the answer is  the similarity is that both are sacrifices which have the same purpose and sacrifice - jesus christ, but the difference is in offering of that sacrifice.

the similarity is that both are sacrifices which have the same purpose (repenting our sins) and sacrifice - jesus christ.  the difference is in the way of the offering that sacrifice. the sacrifice of jesus on the calvary is sacrifice of his actual living body and blood, but the sacrifice of the mass is the sacrifice of the jesus through bread (body) and blood (wine). in the sacrifice on calvary jesus was offered for us; while at mass he offers himself through us.

romare bearden worked with many types of media which includes cartoons, oils and collages. basically, the use of collage him create emotionally affecting images hence back then he had struggled with his two artistic sides as a student of literature and of artistic traditions and being a black human being which involves very real experiences, fugrative and concrete.thus through the use of collage expressed or showed how his art/work became more representational and more overtly socially concious. he showed how not only were african-american rights moving forward but so was his socially concious art and by then his works became generally considered as best works in 1964.