On the pages for those legendary Pokemon, it only shows the Therian Forme, even if you click Incarnate Forme.
Make sure to reload the page once or twice. I had the wrong form names originally so the "incarnate" image may be saved in your browser as the old pic.
If you still have problems, open these links individually and reload them to get the new image. http://img.pokemondb.net/artwork/tornadus-incarnate.jpg http://img.pokemondb.net/artwork/thundurus-incarnate.jpg http://img.pokemondb.net/artwork/landorus-incarnate.jpg