Help constructing a reproduction of a freeform sculpture

Thank you- could you describe your method of construction of the file that you so
kindly created??

I would like the contours to be smooth and flowing in the end result. What would be the ideal way to construct this,
and what software would be best suited for the job? I have very little resources for software, but it would be great to
know what are the right tools!

With my thanks!

My Regards,

peter stetler