These windows are the kind of thing you base an entire design around. Also, this shed is bigger inside than out, which is a plus.
The leftmost bottom shed is a design that was popularized in Make magazine, the MD-100 by Edgar Blazona. Free plans are available at scribd, and RelaxShacks.com offers their take on it as well. I’m not sure the floor is really far enough off the ground, and it’s entirely uninsulated.
The right bottom shed is a simple utility shed, but the integrated deck and clerestory windows are quite nice. I think plans for this are available online somewhere, too.