Everone's lines are looking amazing, I like the tack on yours Dream!
Frontier - only thing I could suggest is shading the manes and tails, but it looks really nice otherwise ^^
Soph - I really really like seeing that the hair actually looks wet! A lot of people don't do that, it looks amazing and I hope you feel better soon <3
I'm just gonna leave
this link here in case anyone wants to hep me with my something-hundred equid challenge c: