Which best describes the colors or color scheme stuart davis used in the painting house and street

I believe the answer is Monochromatic
A color scheme could be categorized as monochromatic if it's derives only from single based hue using additional tints, tones, and shades.
The usage of these will alter the brightness and the saturation of the color just like what we see in the painting.

Would it be an oboe?

Answer(simplify painting);