I don't know if I could spot a smokey cream, but perlinos tend to have more orangish points. As for smokey black, you're right, you can't see the cream on black, why it has a special name I couldn't tell ya.
As for the pic, there is no color on the foal's legs, they are white, so that is no indication. Foal color changes ALOT from birth and I could buy this baby being a buckskin, hard to tell for sure on that pic. Only their white areas have pink skin, their colored spots have dark skin. I can't tell their eye colors from those pics, but blue eyes from pinto are different then double dilute eyes, DD eyes are not the super bright blue of typical pinto blue eyes, they're more pale colored.