Kids Reward Sticker Design: Friendly Fox Giving Thumbs Up

Create a clean, vibrant vector illustration of a friendly fox giving a thumbs up, suitable for kids’ reward stickers. The illustration should feature a cute, approachable fox with exaggerated, expressive features, no shading or gradients, set against a pure white background. Ensure the design is detailed enough for die-cut sticker formats, with bold outlines and simple color contrasts. Include placeholder text [Insert Fox Expression/Feature] to customize expressions or accessories. Focus on a joyful, encouraging vibe perfect for rewards.