Ultra-realistic 3D Depiction of a Coastal Island City for Use

Design an ultra-realistic 3D depiction of a coastal island city for use in my city simulation game. Illustrate a vibrant downtown area with a grid-like street layout, showcasing dynamic activity with vehicles, pedestrians, and cyclists navigating the surroundings. Incorporate detailed structures such as office buildings, a state-of-the-art police station, a modern fire department, and a bustling port with cargo ships. Convey the ambiance of a sunny and clear mid-afternoon. Model and render buildings and roads precisely in isometric projection, with lifelike textures and shadowing. Include tropical palm trees, lush parks, and a scenic promenade along the waterfront.