>>185733
>Thinking of art as only that pleasing to the eye is reductive.
Honestly, I don't even think Hitler's art looks any more pleasing than the other paintings in the image anyway. Real life doesn't tend to look very good outside of sunny days.

For me the worst looking modern art are expressionist, impressionist and cubist paintings with low contrast colors. The fewer the number of distinct shapes, the greater the importance of color, and out off the entire of the color spectrum these people decide to use various shades of brown.
That said, I think ones that have well defined black lines, like nude descending the stairs, still work, cause the black gives a nice contrast to the brown.