I don't have a solution for this photo at all, sorry. The background behind the hair is just too varied.
May I see a 100% crop of the area at the top of Dad's head?
Great.
The second answer to your question is to always make sure you embed the profile in the file, any time you save. Each save dialog, no matter which version of software you're using, will always have an "embed" or "include" checkbox.
Hi @meris, can I just check that these are real crops from the photos, not screenshots? Screenshots aren't colour-managed, you see, so the colours would be inaccurate.
You don't ever need to go into the "Convert to Profile" or "Assign Profile" windows. Ignore them.
This one is correct of course:
For this one ...
... read: https://www.damiensymonds.net/2010/11/colour-modes-vs-colour-spaces.html
That is VERY freakin' weird. I've never seen it before.
When you press OK and OK to close all the way out of that layer, then double-click it to open it again, are your grey swatches still there? Or has it reverted to rainbow again?
If you just press "OK" to that window for a moment, does it take you back to the smaller window? That's where you'll find the "Angle" setting. Also make sure "Dither" is checked.