I'm glad you changed your mind about the SW blue if that's the sample on the wall--Too dark and unnatural imo. Are you staging for sale? Then I'd go for a less obtrusive color; maybe a very pale grey or off white, even just white for that matter.

I keep reading the trend is away from grey and toward beige/greige, but who knows. If you are keeping the pink in the bathroom, grey would look nice with it. Are you getting new bedding? I recently saw a color by SW in a friend's house, called Queen Anne Lilac. It was gorgeous and may go with your shell pink. Hard to say, though, without knowing exactly what pink you used. The photos I've seen online of Queen Anne Lilac look a lot more grey than it did in person, and now that I look at your photo again, it might be too close to what you currently have to be a significant change.

Not a pro. I had an accent wall in my family room on the fireplace wall and just repainted the entire room the same color. I like it so much better so I am kind of over the accent wall thing. Here are some ideas. https://www.homeawakening.com/dark-furniture-bedroom/ I love the second picture and I believe the color is SW Quiver Tan, which is what I have in my foyer. I absolutely love the color.

I typically go with warmer tones rather than cooler. My bathroom remodel was out of my comfort zone but am VERY happy with the finished product. My house is decorated traditionally. Lots of beige. I am starting from scratch with only my furniture, which I have had for 30 years. I will be getting new carpet, bedding, lamps, window treatments and upholstering a chair and ottoman. I am probably doing this a bit backwards. I agree that the rooms need to have some type of flow.