Garden Design and Refresh

I'm seeking a garden refresh for my mid-sized London garden, focusing on aesthetic improvement for entertaining, relaxing, and kids. The main element is the introduction of colorful, low-maintenance flower beds. Key Requirements: - Design and execute a modern English garden layout with a contemporary style. - Incorporate a mix of seasonal and year-round plantings for varied beauty throughout the year. - Ensure the design complements and enhances the existing aesthetic of the garden while preserving the maturity of existing trees. - Provide detailed plan layouts, plant lists, and maintenance guides focused on low-maintenance options. - Include quotes with and without replacing paving. - Consider access through a side garden shed; avoid kitchen access if possible.