I’ve worked through your crits and hopefully improved the image. These are the changes:
Shadows to cars behind building.
reflection of adjacent building in windows.
added noise to render.
sharpened background image.
brightened the whole image. not sure whether it’s enough, I haven’t calibrated my monitors etc.
changed the brickwork texture to more uniform pattern.
darkened edges of kerbs and paving.
Crits welcome but I’m going to call this one finished and move on.
Really nice work. Am new to blender. Am trying out architectural rendering. How did you import the 3D model into blender ?. Nice if you could let out the secret.
regards,