Fuse 2 Images into 1 HR Artwork for Large Wall Print

I'm looking for a skilled image editor or AI artist to seamlessly merge two AI-generated images into one cohesive, ultra-high-resolution composition.

The final image will be used as a large-format wall cover, so it must be professionally blended, without visible cut lines, artifacts, or mismatched lighting. The two images are already stylistically similar, but need careful integration so they appear as one unified scene.