Bloomin' Cacti!

     We have four Christmas Cacti in bonsai pots in the front, south-facing window, and they are all either in bloom (for the second time!) or are about to bloom.  We are doing something right.  The one above is white with a hint of pink and looks like a bird in flight or an angel when it is in flower - right now it has four blossoms with four more to come (there are three buds at the end of one leaf).  I took the picture on top of a rug as it's in a tricky place to take good pictures of.  The other has two blossoms that are pinky-orange with white through the centre.  The other two have unopened buds on them for now, and one of them will be blooming for the first time, so I'm looking for to seeing what colour it will be.