I DONT HAVE ALL ANSWERS -But I do have some I hope this helps
Birds eye - to get a new perspective angle or to show how things are layed out
Low angle - so that the sene can be more dramatic and add more emotion same with high angle
Removeable lens-that way you can remove it if you are not wanting to have it on in that scene
Answer: Artwork becomes expensive when it takes longer to create and depends on the time period in which it comes from.
Explanation:
I have no clue you should ask Google
