I just had a listen to the ambients and they're sounding fantastic!
My favorite were the builder ambients, you really nailed down that creepy and mysterious church cult feel with those.
With the mansion ambients I thought the skylight one sounded fantastic but with the heal mansion ambient I think it would work better for a room in the mansion but not so much as an ambient whilst traversing the whole mansion.
Something I've found when making or finding ambients for mansions (or really any place where the player is expected to spend a longer than normal duration of time) is that you want a track around the 5 minute mark that stays basic in the background like skylight or use a drone or something similar and then add in little creaks or other noises throughout, nothing thats too distracting but that is still noticeable in the background. The key thing is avoiding repetition (hence why the 5 minute time comes in handy) because chances are the player will be hearing this track over and over again.
Of course that could just be my personal preference but hey food for thought
Thanks for offering these to the community as well! Looking forward to hearing your next batch