Yes, those photos are very unusual even without taking into consideration the lack of Hohenzollern wedding photographs in general. There's the really personal photo of H&I coming up the aisle together (one of my favorite royal photos) that is pretty unique in royal wedding photos--usually there's either an overhead shot of the ceremony (as there is with H&I) or the formal photos afterwards. Dona, Vicky and Sophie (the latter two not married in Germany) were photographed in their wedding dresses, while Crown Princess Cecile was photographed on the way to the church and Victoria Louise's wedding dress was later put on display and photos taken but most of the rest are sketches or composite photos. Moretta's 2nd wedding was photographed--I think some of the photos appear on earlier pages of this thread.