Colin, for some reason your image did not show up yesterday. It is fantastic indeed! I could spend hours watching the transparency of the aerial part, almost acting as a lens, and the starry and mysterious world under the water. Gary's comment is spot on.
Akira: nothing special, no focus stacking here. The DOF you get with the V1 is enough actually. I just shot the 33 pictures, worked them in PhotoNinja and threw the TIFs in Autopano. The hard part is then to find acceptable settings to avoid too much distorsion.
Elsa: I entertain the idea that some day I will acquire a printer, just for B&W.
Thanks everyone!