I would bet that first horse is a Champagne, not a pally or any other cream dilute, due to the telltale freckling/mottling on the skin. Champagnes eyes change as they age and settle to a pretty amber colour, or a lighter colour if they also have the cream gene.
Here is pics of one of our stallions with lighter yellow eyes with blue spots in them. In person they are much lighter colored. I added the link to some of his pictures so you can see his coat color and how it changes with the seasons too.
DTS Golden Junior is registered AQHA. But he has a lot of horses in his pedigree marked palomino and dun factor. Someone else contacted me and said that he must carry to dilute genes. Cream gene from the palomino and the dun gene modifier is what makes him the way his eyes are.