VTuber Streaming Screen Generation with Customizable Character and Theme

Prompt

[Character Settings] ・Character appearance: {argument name="キャラクターの外見" default="brown hair, short twin tails, red eyes, slightly pointed teeth (fang-like teeth)"}.  ・Style setting: {argument name="スタイル設定" default="a room full of donut motifs"}  [Fixed Section] A high-quality image depicting the layout of a VTuber livestream screen. The image ratio should be landscape (16:9). The art style should be output in a **"3D CG rendering with cel-shaded anime-style visuals, as if rendered in Unity or Unreal Engine (3D model)"** style.  Main visual: The character described in the [Character Settings] should be depicted as a 3D avatar, sitting in a gaming chair designed to match the [Style Setting] at the center of the screen. The character should be three-dimensional, rendered with anime-style shading, and speaking while gesturing toward the front.  Design consistency: The room interior, the design of the gaming chair, and the frame of the "comment section (chat window)" placed on the screen should all be depicted as a 3D space that matches the theme of the [Style Setting].  Composition and elements:  Background: A depth-filled 3D background based on the [Style Setting] (windows, wall decorations, furniture, etc.).  Foreground: A keyboard, mouse, and mug are placed on the desk, creating the atmosphere of a livestream and a composition in which the hands are visible.  UI elements (comment section): Place a "comment display frame (window)" designed to match the [Style Setting] in the empty space on the left or right side of the screen. Place a "theme display frame" at the top of the screen and write an appropriate theme.  Comment content: Inside the comment frame, depict vertically aligned text comments from viewers in Japanese, following the theme. Make the text look like a digital font rather than handwritten, to express the feel of a livestream chat screen.  Overall, please make it a cohesive, attractive, and immersive livestream screen that a professional VTuber using a 3D avatar would use.