color gradient

The images show a comparison between original photos and edited photos.
In the top images, the left photo looks natural while the right photo has sharper colors and an added arrow.
The editing in the top image is used to highlight the road sign information.
In the bottom images, the left photo appears darker with natural colors.
The right bottom photo has been edited to look brighter and warmer.
The differences can be seen in color tone, contrast, and lighting.
Using Photopea, these differences can be identified by checking layers and color