the curtains will certainly work, and you should choose a model, a picture and a shade according to the style of everything in the room.
if you want the room to be stylish, pick up the curtains not for the tone of the wallpaper, but for the upholstery of the furniture. there is no secret here, the fact is that, as practice shows, wallpaper is glued in the bedroom much more often than furniture changes. therefore, to save yourself from the constant torment with the selection of curtains, choose them so that the texture and color, they are in harmony with the furniture.
an alternative would choose curtains, the color of which 