Living Life By The Numbers

A holiday Monday - yay.  I celebrated by tidying my bookshelves and discovering a 3-D jigsaw.

I thought I'd give the jigsaw a go because why not?  I then discovered that all the pieces were numbered (not by me by Ravensburger).  That simplified the puzzle quite a lot.  This is a view of the main body of the puzzle (it was a Lighthouse in case you were wondering).