Visually they what I put in the book, more or less; I can tweak selan.
Vaskr are noticeably taller than baseline humans, they have teeth like a carnivore's (including fangs) and they have horns that branch (you could give them antlers, it's basically the same thing, antlers just shed annually), this can give them a fiercer appearance.
Selan are more lean than baseline humans (more slender or wiry, however you like), and they have cloven hooves; this can be digitigrade legs as well, so something like looking like antelope- or deer- legs, with a long tail for balancing that has long silky hair, like a banner or pennant of a hair-tuft.