I might have a try at this later. You have got all the shapes in as I would do it - the torso should probably use a symmetrical lathe to get rid of the seam down the middle.
Did you load a background image to trace over? Hold down the left moust button on the top left of the view where is says "Front" and choose load background. Then you can choose "Overlay Background" from the same menu to have 50% transparent drawing mixed over your curvy sculpt.
With the backdrop and the widget move tool and smooth you should be able to tweak the curves to fit the source image pretty closely.