手绘涂鸦风卡通简约黑白线条星星云朵闪电心形气球铅笔

minimalist hand-drawn style illustration, randomly placed objects including question mark, star, crown, arrow, heart, flower, explosion pattern, speech bubble, light bulb, planet, cloud, no specific spatial relationship, pure white background, rich decorative elements, lively and fun visual effect, conveying creativity and positive emotions, relaxed and cheerful atmosphere, black and white color scheme