[atckyrre]

Thanks, Ed. Appologies for not showing the rest of the aircraft, I'll prepare a smaller copy to upload. In any case, the paint job is consistent with the typical KG66 camo of the day, with rather densely overpainted fuselage, including the swastika. I don't recall having seen any 1./(f)120-machines painted similarily.
Anyway, as you say, the possible illusion of some fairing on the lower fuselage could very well be created by the various features of the camuflage, combined with shadows and a high contrast photo.