A highly detailed hand-drawn illustration of a pumpkin plant pattern. The pattern features pumpkin plants with pumpkins in different sizes and stages of growth, along with their leaves. The drawing should be in a rustic style, using very long strokes without lifting the pencil, creating a continuous flow. The background should be white. Ensure the illustration captures the natural details and textures of the pumpkin plants, pumpkins, and leaves, making them appear realistic and textured. The overall style should be simple yet detailed, with an organic and natural feel.