I think you are right about the cactus BUT the flowers where not fragrant flowers but did only last one night and yes bloom at night only. the other one with wavy lines i am 99% sure the flowers where the same.
"I'm very interested in the Philodendron? in the single photo, seventh row down!" i have a very limited 1 or 2 cuttings and only 1 or two leaf nodes so i will assume it is yours when i get this up to date
thanks for ID
mike