Struggling with a color for the wall. We don't get a ton of natural light so don't want to do anything too far. The room next to this is a pebble color. The backsplash is a light gray. Worried if I do gray on the walls too much gray. Also, the hallway o was thinking a dark gray or even a blue, as that has a ton of traffic with kids. Like any of these or start over?

Also, lay subway traditional or herringbone? Lastly, below is a picture of the material being used for a cornice and drapes for bag and window.