What we supposed to write in the intro of formal analysis essay from art class?

In the introduction it is best to start of with who created it, when, and what type of artwork it is. State which era they were creating in, whether it is modern or not, and what kind of artist the creater is. For example if they were into figurative or non-figurative, abstract or realism.

earliest

neumes above text

neumes

colored lines

neumes

4-line staff

f, c, or g clef

notes on 5-line staff with clef

mensuration (longas and breves)

time signature (perfect or half circle)

most recent

notes on 5-line staff

modern clefs

modern note values (whole, half, quarter, and so on)

modern time signature

italian words and abbreviations for dynamics and tempo

staccato, slurs, and so on

a fashion movement

sorry if this is wrong