Grade A stuff, even on this site.
Even though it might lack direction as noted by other posters, it is still probably in the top 10 of this entire site. This is one of the select few that I can actually grade professional... I would expect to hear this in an actual commercial or on the back-burner of a dark, mysterious scene in a movie. This is clearly the best 'in the background' track on this site.
Orch, this is clearly another strong submission and the way it was put together screams volumes, even if the track itself doesn't.
Ms. Goldin, although you weren't the front and center in this particular remix, I believe this is your best. Your vocal range is astounding, and for this reason, I believe your voice completely dominates other tracks. While this isn't a bad thing if you are trying to showcase your talents, it sometimes detracts from the song itself. Here you were put into a supporting role to the piano and electric and complemented it perfectly. Hitting the uppers really contributed a massive amount of meaning (read:emotion) to the track that might have been lacking in your absence. For this reason, every single artist was clearly highlighted without any single artist taking away. By putting a measure of restraint in the amount of use of vocals, this song really came into its own.
All too often you see tracks trying to pass itself by flooding the sheer talent as opposed to the original, well thought out processes of music. Congrats to all three of you. This is a the exmplar of a perfect collab.