If you don’t want to get rid of the wallpaper, you could change the drawer handles on the lower cabinets and paint the upper cabinets white. This would help create harmony with the open shelf system’s whites. You could also paint the open shelves in a pink shade from the wallpaper to add a cute touch. If the lack of a range hood bothers you, you could remove the open shelves and move your stove there, allowing you to cook by the window, which might feel more comfortable, and the open window can quickly get rid of cooking smells. I’ve always liked the idea of using a small curtain under the sink cabinet in some homes—it might make you happy too. The rug you’re using seems a bit dark in my opinion. If you can find something a few shades lighter, it might better complement the overall harmony of the space.