Render an image of a thriving elven metropolis that fills an entire valley with hundreds of buildings featuring elven architectural style. The huge massive elfic city should exude a sense of harmony and prosperity, with sunlight glinting off the spires and bridges connecting the structures amid golden roofs and domes. The city has several strongholds and towers, domes and majestic and mighty structures, render with a realistic style with sharp details and vibrant colors, with elfic complexity and detail, with a 4K resolution, ensure to keep same elfic elements to all buildings to keep the harmony of the picture