"Create a richly detailed, girly poster filled with an array of bugs and butterflies, designed with a retro vibe. Use pastel colors for a soft, hand-drawn look, ensuring each insect is intricately stylized amidst a dense garden of flowers and leaves. Integrate heart-shaped silhouettes subtly throughout the crowded and vibrant background, enhancing the sweet, nostalgic ambiance. Focus on creating a composition that feels lively and abundant, capturing the enchanting chaos of nature.