this looks pretty nice..but not for long. i think it might be just me but a landscape like this gives my eyes no point to rest upon. they keep wandering from high contrast to high contrast trying to find the point of interest. i know it was quite some work and i am by NO means a city painting expert, but whatever the focal point is here, enhance its impact. if this was my painting then i would play around with the particles in the air, the dirt of the city in combination with the natural light source and their shadow a little bit more