Unmount or not?

[Zaskia]

Hi, I received my very first Bulbophyllum today, a Mastersianum, and it was mounted. I'm terrible with those. My first and only mounted orchid is just barely surviving. I think...

I live in Sweden and it's usually fairly dry in my house. 30% humidity or so. It doesn't feel like that's the best environment for mounted orchids?

Should I perhaps unmount it? It looks like it wouldn't be very difficult.

Any advice would be appreciated!