Answer:
use you pencil horizontaly and try to shade and then use you finger oy bud to look more better. :)
Contrast, Balance, Emphasis, Movement, White Space, Proportion, Hierarchy, Repetition, Rhythm, Pattern, Unity, and Variety.
I could use these principles to make my art work more aesthetically pleasing and more optimistic to the viewers experience. Hope this helped :))
What are you talking about?