I’m pretty sure it was initial sketched or drawings
The best answer here would be pencil.
Artists use pencil to make sketches and create studies. They then use these sketches and studies to create their final larger piece. They use pencil because it's quick, can be corrected, lightweight and easy to use. Before pencils artists would make charcoal drawings but once we had pencils it made sense to use them as they aren't messy like charcoal.
Answer:
Maybe Art as Representation
Art as Expression of Emotional Content and
Art as Form
Explanation:
I'm not sure because it's kind of subjective to opinion, but these are three categories for the definition of art
