Pedestal with sculpture/vase and Painting the 23" wall that faces the front doors a different color, seem to be the winners :)

Art definitely imitates life! The Grand Budapest Hotel was a recall back to the very elegant period between the two world wars. Many heritage hotels around the world still preserve that look, and taking inspiration from that style shouldn't be expensive, if one acquires furnishings slowly. So I'll definitely pick The Grand Budapest, even though my place is still far from looking like that, but for want of more elegance. The Eastern and Oriental in Penang, Malaysia:

Small plunge pool

The way that sound travels is a science. I would suggest that you engage an acoustic engineer to assess the situation and make recommendations and research flanking sound transmission. If it is voices and TV noise that you can hear it may becoming via the windows or vertical ducts that contain plumbing, rather than through a concrete slab. If they were tap dancing on their parquetry then it would transfer through the slab. I would be looking to identify the travel path of the sound before spending big money on sound insulating your ceiling, and losing height, which may not solve the problem. They could also be slightly deaf and speak to each other loudly! Best of luck Dr Retro of Dr Retro House Calls and Dr Retro Virtual Visits via Zoom