You can try shades of teal & white in maybe floral,Paisley or a pattern that you want to try in incorporating with the theme of the room. Since your furniture is brown ,please try fabrics with white,teal and shades of brown as well...Go for a cotton/ raw silk fabric rather than heavy material drapes.Keep it floral and summery.Teal is associated with summer and ocean.Thanks.

Instead of the solid grey, you can go for sketches in grey with flashes of mustard/ yellow. Or, look up these links for wallpaper ideas https://goo.gl/images/OrCtY1 https://goo.gl/images/0ZpAmU

Hi there - I think if you are able to post any photographs at all with your question, you will have loads more helpful suggestions. People around here are just so visual! 🌈👍

Greetings From Dream Design, As per your Requirements we are suggestion you some changes -White color -where It is Grey -Dark Cream -Where Blue as it will highlight that area and also well goes with Bricks -and Trims take Dark cream -For Shutters you can also use Cream color So use the White and dark cream with combination as brick part is already dark If you need more help Pls mail us. Thanks Dream Design