The artwork is a detailed watercolor collage showcasing a variety of British steam engines dating from 1863 to 1948. The composition is arranged in a thematic montage, with several different locomotives positioned against a soft, painted landscape backdrop of rolling green hills and trees. Each engine is rendered with care, highlighting the distinct mechanical designs, coal tenders, and varying color palettes—ranging from classic blacks and deep reds to sleek, modern blue streamlined models.
Interspersed among the trains are vignettes of railway infrastructure, including a signal post with red and white semaphores, a brick bridge, and a platform scene featuring figures working near crates. The overall style is reminiscent of a historical poster or an informational guidebook, characterized by soft brushstrokes, muted earth tones, and vibrant highlights on the metallic surfaces of the trains. The soft, light-filled sky ties the various elements together, giving the scene an inviting, nostalgic quality that celebrates the history of industrial transportation.