The Luxury of made to measure bespoke furniture is you get to choose exactly what you would like your sofa be from fabric, colour, type of cushion filling to the exact dimensions you require. I also think the other advantage is you can also custom the sofa to fit the space in which it sits to maximise space. I would in my experience say that if you prepared to pay a certain amount for a sofa that there isn't that much in the overall cost but find that you may actually get a bit more for your money for instance a lovely feather foam wrapped cushion against a hallow fibre dacron seat cushion, sprung seat section instead of webbing that kind of thing. If you find a style why not ask for a comparison cost you maybe pleasantly surprised. My only real advise would be to make a full list of specifications for your upholsterer to work to such as how soft you would like the seat so he has some clear guidelines.

Thank you all for voting! We went with a charcoal velvet sofa in the end, very squishy and comfortable - great for the library! Green velvet would have also looked great but as ever, budgets aren’t unlimited so we went with something that would hopefully fit in if the decor changed in the future!

I think you could go various ways. I like the rug, can it go under the sofa feet? (Hard to tell how wide it is from the photo). The art seems a bit small, it often works better if it's hung just a few inches over the sofa to connect with it. I'm not sure if this art is big enough though as 4 seater sofa sizes vary. I'd probably repeat the brass for a coffee table or floor lamp and then I've picked up colours in the art for cushions but maybe vary the texture with linen etc rather than just all velvet. I think it will look great once furnished and accessorised 😊

Is your chesterfield a dark colour? Either of the second two would lighten the whole look. You could get another plainer chesterfield style in linen to contrast with the leather. Consider slip covers if you chose cream, maybe a pale grey would be more foregiving and match your silvery wallpaper.