#1
I chose the colors red, blue, and yellow with low saturability, accompanied by grey for the first one. Some propaganda paintings inspired my usage of this red and blue or political comics, there are also elements from those works in this piece. (especially the fourth one, the sharp rectangles somehow look like two human figures.) And I chose grey and yellow to balance the whole image.
#2
this set of colors is a kind of triadic color(yellow, blue, and purple), with light grey as a mediator in between. I thin the random curves and lines in this set of work created a sense of motion, in contrast to this colors of softness. And the whole image is visually pleasant.
#3
In the third set, I used some sharper elements with more fluid feelings. Dark blue and black, light and dark grey are couples nearby on the color wheel. And the gathering of these four colors made the image concise, with some sort of futuristic style.
#4
The forth piece consists of some pairs of rectangles, with some thin strips. I also used black and white, with a brigher orange to create more eye-catching contrast, but this time, the use of grey might be a little conservated, and the visual effect was not that satisfying for me. However, I still consider it as a visully completed piece.