Not sure what the Big Beasties are actually called, but they're both fantastic, and the rest look very nice as well. The Ogres had the bad luck to be created during the Storm of Dull Ideas that was 6th/7th Edition, so it's nice to see them finally getting some character in their model range.
EDIT: I'm sure it's occurred to others, but that beast just screams "Baby's First Squiggoth" to my Ork brain.