강릉 앞바다에 좌초된 북한 잠수함

A wide, atmospheric shot of a dark, ominous submarine stranded on a rocky, misty coastline at dawn. The sea is calm but the sky is overcast and grey, creating a feeling of tension and mystery. No people are visible. The focus is on the cold, metallic texture of the submarine against the natural, rugged environment, symbolizing a secret intrusion. The style should be a whimsical digital illustration, with a soft color palette and a playful, fantasy-like mood. Use clean lines, subtle textures, and dreamy lighting to create a sense of wonder and magical storytelling, suitable for a children's book cover.