Create an interior space featuring walls covered in textured sand-colored and gray wallpaper, with the perspective showcasing a seamless transition between two rooms. The first room should have a neutral, elegant atmosphere, while the second space is partially visible through an open doorway, maintaining the same color palette but with slightly darker tones. Focus on soft lighting that highlights the subtle textures of the wallpaper, with matte surfaces and smooth contrasts between the sand and gray shades, creating a calm and cohesive environment across both rooms