I can't lie, idk if I'm tired lately or what, but I'm looking at the colors and modifiers of my horses, checking out the wiki(the site I found was incomplete), and hearing the internet dial-up noise...
There are some I can look at and know right away, but then I look at the more complicated colors and my brain shuts down lol.
Mostly this lovely lady and these two gentlemen.
Some colours are only distinguishable through testing, like black x smoky black, perlino x cremello x smoky cream, and I'm sure there's more.
Some are so similar there is only slight difference that you might or might not ever see, while some are similar, but you will start seeing the difference with experience. You can also try looking for some traits that are specific for a gene, like the markings of dun or darker legs and mouth on bays
Without looking at the guide, with a few-hours-old memory of the guide and my experience of seeing how the coats are drawn in this game I would guess:
1: darker legs so my guess is bay based, maybe prl/prl and/or champagne, maybe also additional silver for the pale mane+tail (if the horse is bay or black). maybe I would add dun, but I can't see a dorsal line(?)
2: again, slightly darker legs so bay based, maybe just champagne? Or maybe buckskin + champagne?
3: I have a very similar horse (maybe even the same lol), so I believe it's either cr/cr or cr/prl with champagne, but I don't see anything to identify the base.
Again, these guesses are made with my experience with the game (which is over 1 year) and a little bit of going through the wiki a few hours ago while figuring out a new horse I wanted to buy 😅