That wall paper doesn't go at all.. and you don't need wallpapers.. how about a cream shade on the fireplace part of wall with oxblood coloured (from your curtain flowers) horizontal band below mantel, while the rest of the walls be lilac? Ever considered stoenwork similar to your fireplace on that wall? Also lower the hung photographs.. should be at least four inches below the windows' top edge.. Your sofas are quite dark. they seem aubergine.. is there any way you can at least place one of the sofas across from a window so that light falls on it? right now it is in the shadows backed against the windows, therefore more dark (does it seem so when you're in the room too?) The mirror (though nice) is too solid and thick for the mantel. can it go on a clearer stretch of some wall? fourth wall? What is the fourth wall like? idk how the fourth wall is like but how about angling large sofa at 90 degrees to the window with the single seater also angled in the corner where the lamp is.. and place the side table with lamp infront of the window (i-e at the corner of the 'L' made by t he sofas).. If possible get lighter lamp shades (cream).. Love the cushions.. place two of these cushions on the single seater to relieve the large sofa.. Please turn the rug lengthwise along the length of the sofa.. get a glass/metal table (if tots allow) or cream ottomon as center table.. The TV is too large for the rack, no? The vase is being wasted under the tv.. Florals and stripes can be mixed depending on print.. but if you bring anymore florals in this room, it would be best to match the flower shape to those in the curtains. I find the curtains too short...

I am not sure about a change in style - contemporary vs. traditional is usually an inherent personal preference and not something you skip. But I see that smaller, single story homes regain popularity as we, the Baby Boomers, are reaching retirement. Urban living and walkable neighborhoods are in high demand, while the large home in the sticks is depreciating in line with rising gas prices. Architecture has always changed with the economy and overall living conditions and will continue to do so. There was an interesting ideabook on this topic. https://www.houzz.com/magazine/a-brief-recap-of-historical-american-home-design-stsetivw-vs~4512983

My entire house is Dulux eggshell brilliant white with dark grey oil based eggshell on walls Looks timeless.

What about blinds which raise up from the base of the window, partially or totally raise as suits? There are some gorgeous lace panels around (NOT talking nets here!) - try Anthology perhaps, or even La Redoute who have some 'v' bottomed ones amongst others? Bee