Walls in Plummett (Farrow and Ball), yellow chair from Oliver Bonas, beautiful parquet floor
Farrow and Ball Off Black and Shaded White. Add crown and embossed wallpaper to walls at ceilings with a deeper color on walls. Or white walls with a darker ceiling.
Low cupboards to seat TV (see LH alcove) with bookshelves above
[On lit] Handpainted tile fireplace - Earnest home co
Created Bliss: diy Faux Fireplace Mantel, better with a screen in front though