What are some types of constraints for creating artwork?

Supplies, Creativity, and Ability/Training.

Explanation:

Constraints are things that stop you from doing something, they constrain your ability to work. If you don't have the supplies you need for a type of artwork you are constrained to what you do have. If you are struggling with creativity while you are trying to work, you will be constrained to what you can create. Finally, if you are not trained in a type of art or your ability is lacking, the piece will be constrained to your abilities.

-has naturalistic color-has neutral colors-has color harmony-has variations of colors with shading and reflections(charing cross bridge by andré derain; the copper drinking fountain by jean-baptiste-siméon chardin)the copper drinking fountain by jean-baptiste-siméon chardinchardin and derain used color differently in these paintings.which painting has these characteristics? -has fauve color-has monochromatic colors-has intense, unnatural color-has pure color with no shading(charing cross bridge by andré derain; the copper drinking fountain by jean-baptiste-siméon chardin)charing cross bridge by andré derain