Beds, paving and structures
Borders, lawn, decking, patios, pergolas and seating, laid into the space you actually have rather than an idealised rectangle.
Outdoors
Photograph the garden as it is. Miravely fills it with planting, paving and furniture while the boundary, levels and the house behind it stay fixed.

Borders, lawn, decking, patios, pergolas and seating, laid into the space you actually have rather than an idealised rectangle.
A sloped garden comes back sloped. Steps and retaining walls stay where they are unless you ask for them to change.
See the same planting scheme in summer and in winter so the garden is not designed for one month of the year.