These are the new "OddPods" from McFarlane - - stylized Master Chief and Brute Chieftain figures. There's two other Halo OddPods on display here.
Relatedly, here's one of the entries in a Halo toy posing contest organized by McFarlane - - Halo-themed wedding cake toppers by Jim Cunningham:
*Previously: Medieval-style Master Chief.
*Buy Halo toys at eBay.