Large, modern architectural planters, sleek, minimalist design, grey concrete material, smooth texture, ornate metal legs, detailed rivets, lush greenery overflowing, tropical plants with large leaves, vibrant flowers in shades of pink and yellow, placed on a rooftop, overlooking the cityscape, skyscrapers in the background, sunny day, bright blue sky, few white clouds, warm lighting, high contrast, 3/4 composition.