Lovely print. I had a peacock feather print and I had a colour called glacier Grey behind. Think it was Wattyl . Again like your other walls it is a greenish grey but darker. I also had my prints on a charcoal wall..loved that too. As you said the picture ties in with the chairs and now it's not necessary to add more matching colours. I'd buy a couple of sample pots and paint large pieces of cardboard. With the other walls I would consider painting them in whisper white (Dulux) a very universal colour that ties in nicely with all colours.

Apart from the paint colour there are a few other things I would change first. Are you able to change the vertical blinds? They are contributing to the dated look. I would lose the table clothes completely and get some modern art for your walls. The lighting is also something I would look at changing especially the ceiling pendant ( too traditional) and the floor lamp. I would also get rid of half the sofa cushions. Changing the paint colour alone will not make your place look modern, IMHO.

consider very dark walls like navy, dark grey, rich caramel or deep rust colours with eaves and fascias white, downpipes same as walls and gutters a mid range colour to match the dark walls (btw some new paints are supposed to have heat reflecting qualities even in the darker colours)

Hi MaxCC, Your 'artwork' is called a wall niche. As far as I know, they were originally used to display religious icons, such as The Virgin Mary. I'm not religious but I do admit that I have a special love for wall niches. I have used them twice in homes that I've built as a place to display my 'Lamplighter' Lladro, so that he is on display to guest. The niches were always placed just inside the front entrance as yours is. Sadly I don't have any photos to show you, as we have just moved house and everything is still in storage. My suggestion, to help you with how to display the object that you will put into your niche, would be to keep the wall itself neutral but paint the niche in a metallic paint. Your want the object on display to be the item of greatest interest and the metallic paint [Resene have some wonderful colours to chose from] will help to draw your eye to that space.