Generate an ultra-realistic image of a futuristic city that merges nature and advanced architecture. The city should boast towering, elegantly designed skyscrapers with smooth, white surfaces highlighted by orange trim. These structures should feature curvilinear forms and large glass windows that reflect the surrounding environment. The cityscape should be interwoven with abundant greenery, including terraced gardens and tree-lined pathways. Include advanced transportation systems like sleek bridges and flowing waterways, with autonomous vehicles and pedestrians adding life to the scene. The background should feature a dramatic mountain range, enhancing the utopian feel. The lighting should be natural, with the soft warmth of sunlight casting gentle shadows and giving the whole image the atmospheric quality of a serene, optimistic moment in a movie set in a utopian future. --ar 2:3