Posted: 24/08/2012 at 12:46
Wow what a project. I am sure that it is all very overwhelming, but like Auntie Betty and Bookertoo say, its best to start small. I assume you dont want there to be a stream in the garden?
Personally for me the 3 levels would make for a great feature. I would give each section a different theme, for example a rustic garden up top, modern in the middle and japenese at the end. I would make use of the stream and extend this to create your 3 gardens as islands giving you a nice serene water feature as well. Make bridges from railway sleepers to join the islands up.
If you are really struggling with this you could always take some photos and post them up. I am sure there is someone out there who can help.