There are skid-marks in the foreground of the picture, leading out from the nose of the airframe. Seems plausible that the aircraft ground-looped, coming to rest with it's nose pointing in the general direction of the initial impact. Damage to one wingtip is almost always a given, maybe a rock/ridge/dip lurched the aircraft back the other way in mid-spin, causing damage to the other tip? Must have been very rough.
Remember when V. planted 310 V5-LYM (I think it was LYM?) 21 nm out of Rooikop one night en-route from Strydom about 15, 16 or so years ago? That night both tip-tanks departed (as they are designed to do) as the airframe ploughed along.