A ton of time spent blocking-in color, and implying some brick on the storefronts. Blending is the key at this stage, and using it in a restrained manner can help to give not only a nice, loose feel, but make the lighting and shadow appear more natural, versus blocked-in and forced. I tend to work from the lightest to darkest areas in stages, moving back over and into those areas that need richer or darker tones.