Pls help i am abt to fail my final

Name the painting above and its artist. what media was used to create this piece? why do you think the artist chose to use this media for this piece?

Answer the following question in 3-4 sentences. what is the above image of? why was it created

I’m the marriage of giovanni arnolfinj and giovanni cermani painted by jan van eyck the symmetry we may observe is primarily symmetry