"By the way .. are those lofts? i mean the body and the fins."
[B]

The main body is a sphere rotated 90° selected the last isoparm and detached the isoparm. Then in side view I've pushed and pulled some rows ov CV's to get the rough shape. After that i've projected several Curves on the surface, trimming it (not the best way to get holes into a nurbs surface, but the fastest one). The fins are simple nurbs-cylinders with some tweaking. The "skin" between is a simple Birail made with 4 Curves (made two straight "curves" with EP-Curve-tool to fit the direction of the cylinder I've mentioned before. than i've created two new curves, fitting to the end of the curves I've created before (Point Snapping). One on the one side, the other on the bottom. Pulling some CV's of the connection curves I've birailed the four curves. That's it.

Hope it helped a bit

b u l l e t