Thesaurus is another term for portal bomb
One point perspective is a type of linear perspective. Linear perspective relies on the use of lines to render objects leading to the illusion of space and form in a flat work of art. It is a structured approach to drawing. One point perspective gets its name from the fact that it utilizes a single vanishing point.
Answer:
For question 2, yes it does look correctly proportioned.
For question 1, I am not completely sure on, but it does look like it could be representing strength/power.
The most popular of Roman leisure activities was Chariot racing
hope this helps