@jeremy5 i was actually referring to the exact same image being already intensively handled at least i had thought so.
@Voula it is a very confusing habbit handling the same issue with multiple topics. is this your sculpture? also what you seem to have forgotten, that i have helped you on a different question, fending of people for fun who are seeking for help is not my cup of tea so dont take that personal.
besides all that, i have seen so many people which have created an object and then painfully trying to reflect that digitally having no idea how to even start. while it might not be a good habit to create something with (personal) digital limits in mind it would be good to at least ponder on how it would be achieved before you start.
when all fails, and i am am sure you can get this patched together when you start with the ground shape and amend the lobes, you can still take a camera make multiple shots of it from all around and get your mesh in a few minutes with a few applications for either mobile phone or computer, which if nurbs are needed you can take as a good reference.