@Melndo The walls are Benjamin Moore Rockport Gray: https://www.benjaminmoore.com/en-us/color-overview/find-your-color/color/HC-105/rockport-gray?color=HC-105 Our window is north facing as well. There is a large Japanese maple near the window so we don't get a ton of light there. I have the floor lamps, two table lamps and a light on the ceiling that isn't in the picture to make sure the room gets enough light. We actually use this room as a music room. There is a piano on the wall that isn't in the picture. Hope this helps! Glad you like it. :)

I recently bought a product called Veilish. It’s a window film made with fabric material. It’s semi-transparent, so it can provide indoor privacy without blocking the view outdoors. The best thing is that it is self-adhesive, and it can be installed and removed easily, so you don’t need an installation expert. I think you will definitely be satisfied with this product.

Since you have the cranks on the windows and need access to them, I wouldn't put anything there. Valances can be old fashioned and your windows are more contemporary. If I didn't need privacy, I would forego window treatments. The views are nice, but if you don't want to see the deck and its furnishings, try an inside mounted semi-sheer cafe curtain on the tall window. That still allows a view of the trees, but will block the deck and railings from sight. Add color to the kitchen with some colorful hand towels, pot holders, crocks/cookie jars/canisters, a kettle or small appliance. If you limit the items to a few decorative accessories, you can change them out when you feel the mood or the seasons change. Pops of orange A bit of lemon Turquoise

I would do something simple like Hunter Douglas Duette shades in their opaque fabric with the top-down/bottom-up option. They can be easily inside or outside mounted, depending on space available. Here are mine in my master bathroom. See how I have the top rail lowered to be able to see outside, but rest of the window is covered, but still allows light through. You can have them all open, all closed or partially open like my photo. This is the third house that I have used this type of blinds throughout the house and been very happy with them.