Answer:
In plastic art, relief sculpture is any work which projects from but which belongs to the wall, or other type of background surface, on which it is carved. Reliefs are traditionally classified according to how high the figures project from the background.
Explanation:
-google
Stippling is the drawing technique!
The difference is when you draw by memory you won't remember every tiny detail, and you make/draw it in your own way vs. having the object in front of you you can copy it almost exactly.
