add a reinforced concrete retaining wall below the house on the slope following the natural terrain the wall should look structurally realistic with clean modern concrete finish light gray slightly textured on top of the retaining wall add a visually appealing fence modern design e g horizontal metal slats or a combination of metal and wood make sure the wall integrates naturally into the hillside and connects logically with the house surroundings keep proportions realistic and consistent with the scale of the house preserve the original house design and environment only enhance the lower terrain area with the retaining wall and fence photorealistic style natural lighting high detail
