OBS-Compatible Matching Background Images Design

Hi,
I’m looking for a skilled graphic designer to help me create two matching background images that will be used in OBS Studio for video recording.

I already have a custom-designed background (modern minimalist office with trading elements), but I am currently facing a visual issue due to layering.

The Problem

I am using a camera with background removal (chromakey), but it does not cover the full frame.

To compensate, I added an overlay image in front of the camera inside OBS.

However, this creates a visible vertical seam/line, because:

The overlay image and the background image do not perfectly match
There are differences in lighting, texture, and color tone
The transition between both images looks artificial

Result: the setup looks fake and unprofessional

What I Need

I need you to design TWO images that integrate perfectly together, so that when layered in OBS:

There is NO visible seam
The transition is completely natural
Lighting and tones match perfectly
The images feel like one single continuous scene
Requirements
Maintain the same visual style:
Minimalist office
Soft gray wall
Modern aesthetic
Trading-related elements (poster, bull statue, etc.)
The two images must:
Align perfectly when placed side by side
Share identical lighting direction and intensity
Match textures, shadows, and perspective
Be designed specifically to avoid visible borders when overlaid
Provide high-resolution output (4K preferred)
Reference attached

I will provide:

The current background image
A screenshot of how it looks in OBS
Clear indication of where the seam appears
Goal

The final result should look like a single continuous background, even though it is built from two separate images inside OBS.