I'll create a sunset scene using pure SVG embedded in an HTML document. The scene will include a sun, a gradient sky, and a simple horizon with hills.

This SVG sunset scene includes a gradient sky transitioning from light to deep orange, a glowing sun partially below the horizon, and a simple landscape with layered hills. You can view it by opening the HTML file in your browser.

I'll create a more realistic sunset scene with animation using pure SVG embedded in an HTML document. The animation will include a moving sun and a subtle color transition in the sky.

This enhanced SVG sunset scene features a more realistic landscape with layered hills and subtle ground texture. The animation includes a sun that moves downward across the sky, simulating a sunset, along with a pulsating glow effect. The sky gradient also animates to mimic changing colors during sunset, and there's a faint reflection effect on the ground to suggest a wet surface or water. You can view this animated scene by opening the HTML file in your browser.

I'll update the animated SVG sunset scene to include a ship and realistic blue water with subtle wave animation.

This updated SVG sunset scene now includes a realistic blue water layer with animated waves using gradient shades of blue to mimic depth. A ship has been added with a subtle bobbing motion to simulate floating on the water. The landscape has been adjusted to accommodate the water foreground while maintaining the animated sun and changing sky colors. You can view this enhanced scene by opening the HTML file in your browser.