I recently had the opportunity to capture Natalie's Quinceañera several weeks back with Ishan fotografi.(www.ishanfotografi.com). I love how this silhouette turned out!
Camera gear and settings:
Canon 5d Mark iii
Canon 70-200 ii
I metered for the stained glass window and then underexposed it slightly to drop my subject into a silhouette.
I did a very small amount of editing in Lightroom to make the colors on the window pop a bit more.
Congrats to Natalie on her big day!