Gigapixel AI Help

I’m new using Topaz Gigapixel AI
The top image is the original and the bottom image is the result of gigapixel ai. with default settings
You can see the skin tone has changed from reddish to brownish
How do I keep the reddish skin tone?

Provide a little more information please. What is the input file type and ICC profile, what is the output file type and ICC profile.

Where do I get the icc profile?

The ICC profile is the colour space used, for example it could be sRGB, AdobeRGB, ProPhotoRGB etc.