[rking117]

the only thing left to make sure we are talking apple to apples is a control photo. If you had taken a photo of the door using only a flashlight to illuminate a spot on the door that would not impact the light given off by the vehicle in any of the scenarios, obtain the mean average of that light across each photo then we could determine the exact brightness variation by type of light. The photos appear the same but small variations in the camera may cause a flux in light via aperture. Without getting so scientific about it good job on this one.