4. Add Architectural Details
Draw intersecting horizontal and vertical lines on the sides of the buildings for windows. Sketch columns on the corners of the tall building at left using vertical lines with an inverted V shape on top.
Use half circles for arches on the roof of the building at the far right. With more half circles, make the tops of the upper windows. Use dark squares for the windows of the smaller building in the middle, and form the outlines of more buildings in the distance. Draw vertical lines around the base of the tallest building.