Sophisticated start. You could go with black and white photography, architectural pieces, art pieces- anything you love on the wall. Then, add pillows in the colors of the art work. If you want to stay more monochromatic, think in terms of textural interest, such as a shag area rug, pillows with seam detailing, etc.

OK - I'm a beginner here on Houzz so my opinion isn't worth a lot but here it is: the room is a bit bland and lacking in character. I think you have to find some pieces you really love to bring it alive. All the suggestions are good for widening your horizons, but ultimately, you need to find things that matter to you, because it's your home and not a magazine photoshoot. That said, if it were me, I'd throw a couple of small, colorful rugs down, and put either one large painting or three smaller ones over the bed - not in a line but at different heights - to break up the binary look. I'd also put something on the wall above the heater. Then, play around with a few cushions and maybe a quilt that picks up some of the colours in your artwork.

Thanks for that AJ Interiors. Yes we have painted chimney breast (white- same as walls) We have a bought a huge dark grey mirror (metal) which has a slightly industrial feel but also in a traditional French style shape (I'm not describing this very well!) the two combinations will hopefully work well in a tradition villa, giving it a modern look. But we really need an injection of colour to lift everything. Am looking for some copper/metallic bedside lights. Quite like this copper lamp from Citta . https://www.cittadesign.com/home/living-room/lamps-light-shades/guarida-table-lamp-wmetal-shade-IIE0005

I meant to upload photos of the wallpaper and cushions.