London and Rome landmarks unite in a watercolor travel poster

A single cohesive watercolor-style illustration seamlessly combining the iconic landmarks of London and Rome.
The grand Roman Colosseum and ancient stone ruins stand alongside London's majestic Big Ben tower.
A wet cobblestone European street winds past historic brick buildings and classic columns.
A vibrant red double-decker bus and a classic red telephone booth occupy the bustling thoroughfare.
An intricate Union Jack flag hangs proudly near an ornate vintage streetlamp.
Pedestrians stroll along the pathways amid lush green trees and colorful window-box flowers.
A monumental stone tablet inscribed with "SPQR" anchors the classical ruins in the foreground.
The sky above features soft pastel washes of blue, peach, and lavender with scattered cloud textures.
The artwork is rendered with expressive ink outlines and loose, fluid watercolor bleeds.
A warm, inviting travel-poster aesthetic captures the romantic essence of both capital cities.