Image Generator

Overview
I am building a personalized book cover generator.
I need an AI expert to design and implement a complete solution that generates book covers where:
The artistic style is consistent across all outputs.
The visual language always looks like the same brand.
The scene and concept can change.
The character can change.
The user uploads a photo.
The generated character clearly resembles the user.
The style remains stable even after injecting the user's identity.
Core Objective
I want a system where:
The style is fixed and consistent.
The scene is dynamic.
The character is dynamic.
The user's face is accurately injected.
The result always looks like it came from the same publisher.
In simple terms:
Same artistic DNA.
Different story world.
Different character.
User face integrated naturally.
Expected Flow
Step 1 – Input
The API receives:
backgroundSettingDescription
mainCharacterDescription
A user face i...