Definitely better
That is something that I have always struggled with. Mostly because I never constrained my colors, never repeated them in different palettes.
Also, the next darker green would work for the cracks in the road and the darkest green might give a nice highlight to the tower.
I like this piece.. I agree with Ottbot about the feel.
I wanted to see if that green would work as antialising so I edited it a bit within a section
Thanks!