3D Kawaii Seasonal Sticker Sheet

Create a 3D kawaii 2:3 canvas featuring nine chibi-style stickers dressed in seasonal and holiday-themed outfits including theme_1, theme_2, theme_3, theme_4, theme_5, theme_6, theme_7, theme_8, and theme_9. Use the attached image for reference. Each sticker has a white border with shadow effects and includes festive speech bubbles featuring phrases like "phrase_1", "phrase_2", "phrase_3", "phrase_4", "phrase_5", and "phrase_6". Set on a soft gradient background transitioning from white to pastel rainbow tones for a festive, versatile vibe suitable for year-round WhatsApp sharing.