As noted on the Emojipedia blog, the Face Screaming in Fear will now look more like the painting by Edvard Munch instead of the weird anime-thing that Samsung had last year. In addition, the dancing woman emoji will look more like a woman doing the tango than a kid stomping in her sneakers. The man dancing emoji also loses the sneaker outfit and gains a purple disco-style jumpsuit. The angry devil, or "imp face" is more similar to what Apple offers, too, changing from a young boy with vampire fangs to a purple frowny-face with horns. Many more of the human-representing icons use a Simpsons-esque yellow skin tone, too, which you can see in Samsung's choice for Emoji 5.0 icons, like Star-Struck face, exploding head face, and woman with headscarf.
Not all new Samsung emoji match up with other platforms, however: the alien monster now looks like a purple squid for some reason. Women and Men with Bunny Ears only show one younger-looking person per gender, instead of two leotard-wearing people like the other platforms (except Facebook, which matches the singular representation). Still, more consistency can only be a good thing for Samsung and other phone owners to communicate just a bit more clearly.