Dull pumpkin colors, lack of whimsy in the grin, unconvincing colorful background, mismatched gradient, lack of stars, uninspiring crescent moon, lack of enchantment, flat composition, lack of vibrancy in the colors, disproportionate elements, lack of Halloween atmosphere, lack of playfulness, unrealistic pumpkin shape, lack of detail in the pumpkin's features, lack of storytelling in the sticker, amateurish execution., ugly, deformed, noisy, blurry, distorted, grainy