hello, please provide me with a guide

hello all,

im working on a project for school, and would like to develop a landscape for a park that i need to design. and i came across this image.. http://www.e-architect.co.uk/images/jpgs/books/hadid_complete_works....

i havent developed any definitions just yet.. that is because i dont know where to start... can anyone just point me towards the direction i need to go in oder to succesfully deveop a similar geometry..

thank you in advance