Hello!
what is Line Variation- line variation is the use of a variety of line including width, length, texture, thickness, etc. to add interest to a drawing or painting. Length - lines can be long or short.
Used the grab your audiences attention. Your make the image stand out with colour, contrast and other set ups
Income increased because a lot of books come to the market and it benefits the economy
The title of this example of art is Sarcophagus of the church of Santa Maria Antiqua.
It does contain Christian symbolism that was unrecognizable by pagans. It was also possibly made to be the tomb of a rich Christian living in the third century. It was made in 275 CE and contains the representations of many Biblical and non-biblical people.