Such a tough subject! I went big too 12×16″ 🙂
It was early morning and the sun was behind the building, so the tones were close together and colours similar.I looked for the warm and cools and made sure the drawing was correct and the skyline details which was so fun to paint! A few people add life and scale, the sun came out at the end of the paint so I put it in the foreground for warmth and punch!