A breathtaking and detailed solarpunk digital illustration depicting a futuristic, self-sustaining eco-city integrated harmoniously with nature. The landscape is dominated by massive, modern wind turbines draped in creeping green vines, alongside terraced, curvilinear buildings covered in lush vertical gardens and solar panels. Glass dome structures are nestled throughout the rolling green hills. A clear blue river winds through the center of the valley, cascading over a scenic waterfall spanned by a pedestrian bridge. In the background, majestic, misty mountain peaks stretch out under a bright, sunlit sky filled with soaring birds, creating a vision of a clean, technologically advanced, and green utopian civilization.