Your mare is Crcr, E_, and A_. She has at least one copy of agouti because she is a buckskin. Agouti turns black into bay, which becomes buckskin with the addition of cream. Do you know what color her parents are? If one is red-based (chestnut, palomino, cremello, etc), she would be Ee or if one was black, she'd be Aa. We could possibly figure out those based on parents.
No, she's heteryzgous for cream. Capital letters mean they carry it, lower case means they don't, so Crcr means 1 cream. CrCr would mean 2. Crcr means no cream. So she has a 50% chance of passing cream onto her foal.
I have an idea about that other foal, but I'm not 100% on it even being possible in their breed and am going to wait until you can post some better quality pictures of the horses.
If the horses are what you both say they are and could possibly be, I'm wondering about pearl. Pearl is currently only known to be in Paints, QHs, Andalusians, Lusitanos, and Peruvian Pasos and is relatively rare, which is why I'm hesitant to say it because I can't find anything about it possibly being in TWHs.
Pearl is a dilution that is a bit strange in that one copy doesn't show up on black, chestnut, bay, or brown. But 2 copies make an apricot-like color. Howeverr, what makes it different is that 1 copy of pearl plus 1 copy of cream ends up with a pseudo-double cream looking color.
In this case, the pearl gene would most likely come from the apparently chestnut dam and the sire would have to be smoky black like previously considered.
Wayyy out on a limb, but the gene is testable at UC Davis. It would be very interesting if it were to come up positive for pearl though, but that's me with my optimistic pants on.
Ooooh interesting!! I can definitely say that foal is a color I haven't seen....but then again we all know how they can change as they reach adulthood. I'm going to try to get some better pictures of all parties to see if that helps with input. Well, except my mare, sh'es clearly a buckskin tobiano.
Do you have any thoughts on the foal out of my mare and this stallion?