VTuber Streaming Screen Generation with Customizable Character and Theme

[Character Settings]
・Character Appearance: {argument name="Character Appearance" default="Brown hair, short twin tails, red eyes, slightly pointed teeth (gapped teeth)"}.

・Style Setting: {argument name="Style Setting" default="A room full of donut motifs"}

[Fixed Parts]
A high-quality image depicting the layout of a VTuber streaming screen. Aspect ratio is horizontal (16:9).
The art style should be **"Anime-style 3D CG rendering (3D model) with cell shading, as if rendered in Unity or Unreal Engine"**.

Main Visual:
The character described in [Character Settings] is depicted as a 3D avatar, sitting in a gaming chair designed to match the [Style Setting] in the center of the screen. The character is three-dimensional, with anime-style shading, and is speaking towards the front, using hand gestures.

Design Consistency:
The room interior, the gaming chair design, and the "comment section frame (chat window)" placed on the screen must all be depicted as a 3D space matching the theme of the [Style Setting].

Composition and Elements:

Background: A deep 3D background based on the [Style Setting] (windows, wall decorations, furniture, etc.).

Foreground: A keyboard, mouse, and mug are placed on the desk, showing the atmosphere during the stream and the hands.

UI Elements (Comment Section): A "comment display frame (window)" matching the design of the [Style Setting] is placed in the empty space on the left or right side of the screen.
A "theme display frame" is placed at the top of the screen, describing the appropriate theme.

Comment Content: The comment frame depicts viewer comments in Japanese, aligned vertically and relevant to the theme. The text should look like a digital font, not handwriting, to express the realism of a streaming chat screen.

Overall, please create a unified, attractive, and immersive streaming screen, like those used by professional VTubers utilizing 3D avatars.