"Design a house based on the provided sketch, blending classic and modern styles. Use gray stone for some façades to create a rustic, traditional feel, and white cement for the remaining façades for a clean, contemporary look. Incorporate dark wooden beams as visible exterior elements to add warmth and tradition. Add large glass panels for a modern, open aesthetic, with all windows framed in black Alucobond for contrast. Place the house in a rural Asturian landscape, surrounded by greenery and hills, ensuring it harmonizes with the natural environment and highlights the textures and materials with natural light. Maintain the proportions and layout of the original sketch while balancing classic and modern design features."