Are you planning on taking 'selfies' or having a Disney photographer take your pictures for you using your phone or own camera? Remember that Disney photographers can take your picture with your phone etc. even if you don't buy Memory Maker.
I found most of these ideas by simply searching online so I can't take any credit!
- outside on the 4th floor balcony at the Wilderness Lodge with view of the lake
- Cinderella Wishing Well statue - near the castle (not sure this is the correct name)
- sitting area w/fireplace on second floor of Wilderness Lodge; this is on the front side of the lodge
- Be Our Guest restaurant or if not eating there; outside along the walkway in the evening
- outside Citricos restaurant at GF
- San Angel Inn at Epcot; don't have to eat there; even just standing nearby can be romantic
- on the beach at the Polynesian; during fireworks or anytime in the evneing or almost any resort beaches
- courtyard outside the French pavillion
- horse drawn carriage rides at a couple of the resorts (Fort Wilderness and Port Orleans French Quarter)
- hot air balloon ride at Disney Springs
- a kiss at each of the World Showcase nations
- down along the water at the Flame Tree Barbecue eating area at the AK
- together riding Prince Charming's Regal Carrousel in the MK
- riding the People Mover in the MK
- in the courtyard/balcony area of the Twilight Zone Tower of Terror before entering the building itself
- the boat ride from Riverside or Port Orleans to Disney Springs
- a walk along the Boardwalk area at night
- be some of the last people to leave the MK after fireworks; just hang around and walk slowly down Main Street; use the castle as a background
I'm sure others will come up with more suggestions.
Have a wonderful, romantic trip!