I really like the "new" Samus they've gone with here. It feels true to her design in the original Prime, while smartly modernized. In fact, I think this is one of my favourite portrayals of her to date.
It's a little touch, but they way they've added her blinking in the remaster makes her feel that much more alive.
It's quite interesting seeing a realistic human in a Nintendo game, in modern-ish graphics. It's not something we've really seen from them before.
That's one of the things I really like about Metroid actually, that it's so different from most other Nintendo franchises, being dark and grounded as opposed to lighthearted and colourful.
Much like Xenoblade, really diversifies their first party lineup in an awesome way.