For this illustration project based on London’s iconic Oyster card and public transport network, I created a flexible visual system using a limited set of geometric shapes, fixed angles, and a consistent grid. Each element is designed to be easily rearranged within the grid, allowing for countless variations while maintaining a strong visual identity.

This modular approach makes the illustration highly adaptable across a wide range of media and formats, from small-scale applications to large posters, digital assets, or wayfinding tools. The result is a cohesive, modern design language that enhances brand consistency while offering visual variety.