Humayun Ka Makbara Garden

This is an accurate and detailed elevation of Humayun's Tomb, a Mughal tomb in Nizamuddin Delhi, India. I am working on detailed and accurate, color architectural drawing themed graphic illustrations for an interactive architecture website where you can tap the graphic and the element tap will enlarge with a description and explanation of the element..

This is a garden plan of the garden that Humayun's Tomb sits in. It is as important as the tomb building. I am trying to figure out a way to make it more interesting and also make the features more distinct. Any advice?