They're called analogous colors! Analogous colors are when certain colors appear next to each other. For example: red, orange and yellow are analogous colors.
Here is my honest opinion:
They are good
Explanation:
The pictures are kind of pixilated I think that if you took the pictures with a better camera I could explain more. I definatley think that your art is good, do you take classes?
Answer:
C
Explanation:
The other 2 make no sense and value is a balance of light and dark.
Answer: study of practices and possibilities of music
Explanation:
Music theory was invented by Guido d’Arezzo