Hi Marie, what a nice set of images. My favorites are 2a - it's so naturally beautiful (from an artistic perspective, I would have liked to see this with a shallower depth of field); 3 - love the tones, lighting and "wonder" it inspires; 2b for its sweetness - it looks like a hot chocolate commercial.
I plan on experimenting on my niece when she comes home from college...so I can imagine all the fun you had with Aurora :-)