This is my first and largest. it flowered twice in the 5 years I've had it

This is a cutting from the one i grow in my workplace

this one i got recently as a gift, for some reason even a couple months of care and it still looks a bit ill to me, can anyone tell if its just the plant?

This is my rope plant, recently had to be cut back over winter when it got chilled in a cold snap

and finally my mystery plant, I think its an australis... but the newer leaves look nothing like the older ones. anyone got an ID?