How he made color flow in this painting is just beautiful to me and he made a sheep in the middle of the painting with the colors and thats pretty cool to me also. I actually didn't notice it at first.
The Builders, Jacob Lawrence, 1947, From the collection of: The White House
This one is cool to me because he created motion out of lines which is pretty amazing to me to look at. Also the colors just works with this painting well.
This another painting with the same tactic with bolding the lines in a painting but this one is way nicer than the other because its in way more detailed and plus I really like the greek mythology and thats obvious what this is.