Here's a concise breakdown of the key differences between the two images:

*   **Color Palette:** The synthetic image has a much warmer, more golden/yellow color scheme compared to the original's beige, brown, and gold tones.
*   **Lighting:** The synthetic image appears brighter and more evenly lit, lacking the strong shadows present in the original.
*   **Architectural Details:** The synthetic image simplifies some of the textured stone detailing visible in the original.
*   **Foreground Elements**: The synthetic image includes rows of pews extending further into the frame, while the original shows fewer people and less pew detail in the foreground.
*   **Altar Area:** The altar area in the synthetic image appears more ornate and detailed than in the original.