The interior design sketches for the Lembaga Air Perak project illustrate a modern, structured, and visually expansive corporate environment, likely for a main customer service center or headquarters lobby. The design intent is defined by a clean, professional aesthetic, showcasing a prominent, double-height atrium space anchored by a large, flowing custom reception counter which serves as the central focal point. Architectural emphasis is placed on the use of vertical linear elements, seen in the dramatic wooden slat feature walls and the geometric ceiling treatments, which introduce warmth and dynamic texture against the clean white and cool grey structural elements. The sketches highlight the strategic use of integrated lighting—both linear recessed fixtures and cove lighting—to define architectural volumes and draw attention to the corporate branding, resulting in a proposed environment that is both grand, transparent, and highly efficient.