a romantic ‘Save the Date’ wedding invitation e-card with a minimalist mountain and lake theme. Use a warm, dusky pink gradient sky for the background, transitioning from light pink at the top to a soft rose at the bottom. Include stylized mountain ranges in muted mauve and terracotta tones, with a calm reflective lake at the base. Add silhouettes of pine trees and rocky terrain around the lake to complete the serene natural landscape. The overall design should feel calm, elegant, and nature-inspired, suitable for a formal yet intimate wedding celebration.