Header image is not completely showing

Your image is set as a background. In you child-theme css add:

#home-tagline {
min-height: 450px;
background-repeat: no-repeat !important;
}

You many need to change the 450px to a smaller or higher number to match your image size

Yes, this totally worked, thank you very much! ??

Glad to be of service.

I am also having issues with this, in fact, with every area of theme setup. This is probably one of the most difficult and counter-intuitive themes I have ever worked with. Do you have any documentation for this theme?

https://www.fortmckayresources.com/