The image features a busy street scene outside a grand building that appears to be an official structure. The title "The Royal Mail Departure From The General Post Office, London" is displayed at the bottom. The perspective is eye-level, showing the front of the post office with classical architectural elements such as tall columns and a pediment. The building dominates the middle of the image, with the horizon visible above. There is a mix of human activity and horse-drawn carriages, creating a lively atmosphere. The scene is depicted in soft, muted tones with a warm color palette, while the carriage wheels and horse coats offer deeper colors and detail. The artwork appears detailed and delicately rendered, capturing a historical moment with precision.