How would you recreate this mix sound?

I recently listened to Elffor's ['The Silent Watchtower'](https://www.youtube.com/watch?v=7MGyRybXnfk&t=1308s), and I am blown away by the production/mix of this album.

Anyone have any tips on how this style of production is achieved? I feel as though I can hear a combination of synths and orchestral samples, but honestly I am not too sure. Also, the album has this cavernous and distant quality which sounds like it's being achieved with more than just reverb; possibly re-amping of the entire mix?

Curious to get your thoughts on this

Cheers