LINE-style Q-version emoji portrait grid

Create a set of colorful, hand-drawn LINE-style half-body Q-version emoji portraits based on the {argument name="reference_characters" default="characters shown in the reference image"}, ensuring accurate depiction of their head accessories.

Arrange the images in a {argument name="grid_layout" default="4x6"} layout, featuring common chat phrases or relevant humorous memes.
Use handwritten-style fonts for text.
Output must be original—avoid direct copying of the reference image.
Final image should be in 4K resolution, {argument name="aspect_ratio" default="16:9"} aspect ratio.