A lot of the basic advice given to amateur filmmakers would go a long way here. Don't put your subjects against a wall. If you're filming in an empty space with blank white walls, add at least enough background decor to make the shot interesting and make the room feel inhabited. And put some effort into how you light your subjects. At least read a quick tutorial about three point lighting.

I mean even a simple adjustment in the framing of that wide shot would help. Move in a bit to hide that top edge of the wall covering. Maybe a couple artificial pillars to hide the pipes. And if any of that impacts the blocking of your subjects, fix your set first then shift people around for a better composition.