They are gorgeous. But they are one single work of art each. I don't think people asking for them to be available for foal models are grasping the enormity of that undertaking. Once upon a time, all HEE horses regardless of breed looked the same with just foal and adult artwork. Then we got breed-specific artwork that was released for one breed at a time and took months for each breed because the lineart had to be chosen from all the proposals and had to then have shading and color layers created to portray every color and every marking possible in the breed.

The foals got one art style because they're only around for a couple months and why take months more of work for artists to draw, shade and color each breed of foal when one lineart would do?

There's already a black foal.

https://i.postimg.cc/cLjBGCVt/Show-Black.png