治愈系高级绘本感文字插画海报

With [Theme] as the core, design a 9:16 vertical healing-style text illustration poster. Uniformly reconstruct [Work Characters] into a set of cute character systems with a sense of original design. The overall style is not ordinary 2D anime, but high-end children's picture book feel × mascot illustration × textured gouache poster × playful graphic character design. Place the largest [Theme Main Title] in the center of the image as the strongest visual center; distribute multiple irregular hand-drawn color blocks around it, with auxiliary short sentence copy revolving around [Theme] placed in each color block. Characters interact clearly with the text: hugging the main title, lying on the words, peeking from behind the words, holding up a corner of a word, resting next to the text, and performing actions around the small copy. Character shapes are rounded, simple, graphic, doll-like, and anthropomorphic, with clear outlines, vivid expressions, and short, cute limbs, like designed cultural and creative mascots rather than ordinary Japanese manga characters. The overall style adopts a hand-drawn poster style, with gouache, water-powder, pastels, colored pencils, paper grain, irregular brushstrokes, and a slight rough texture. The color scheme uses a random but coordinated high-brightness soft color system, which can use cream colors, macaron colors, candy colors, spring garden colors, summer gummy colors, etc., with the central color block being more eye-catching and the background remaining light and clean.