render a beautiful 3d topographic map with soft natural lighting and gentle shadows the higher elevations should have a smooth gradient transitioning from light beige d3c8b4 at the lowest points getting progressively darker through shades of taupe b5a89c and reaching to a rich deep brown 665c47 at the highest points ensure the contour lines are distinct yet subtly blended into the terrain creating an organic flow the atmosphere should feel serene and earthy with a slight morning haze to give it a tranquil early morning ambiance the overall look should be detailed and visually engaging inviting viewers to explore the undulating terrain architecture
