Creating "fluid" shapes

Hi all, I am attempting to draw some more "fluid" shapes than I am used to and am wondering if I have gone about things in an efficient manner.
I completed this shape by drawing splines and a curve-onto-surface projection. Surface filling the curves, then knitting the surfaces.
This leaves me with 2 Solid Bodies in my drawing and the feeling that there should be a simpler way to acheive a similar result.
Any thoughts from the gurus out there as to how they would create a similar solid?
SolidworksParts And Features