Back to the gown. To attatch the skirts to the bodice you first have to pleat them down to a size that will actually fit into the opening on the bodice bottom. I usually do this by putting the bodice on the dress dummy, sitting down in front of it and then simply start pleating. I've got an almost uncanny ability to pleat exactly the size I need with very little re-do. Must be a gift.
The skirts are now attatched to the bodice. To finish up the gown hand sew the side seams and the hem.