Our Christmas Cactus is in full bloom now,  and I have been tempted to a few more natural light shots. Some of the blossoms hang down in front of a mostly black speaker grill, so it is possible it isolate them against the fabric. With some tweaking in post-processing, I can get a solid black background. Natural light preserves the delicate shades of purple in the flower, but makes hand-holding the camera a challenge. The efficient IS on the Samsung helps.

Samsung Smart Camera WB800F. ISO 400 @ 1/8th second @ f2.9. 28mm equivalent field of view. Processed in Snapseed on the Samsung Galaxy Note 10.1 2014.