Including Alberta Falls herself, there are five names referenced here, and that would match up with the five people we see in the newest concept art, which reimagines the explorers that have been chased up a tree by a rhino. As we see in the concept art below. The woman at the top of the tree is clearly a birdwatcher. The Asian man below her is surrounded by insects, and that appears to be Alberta Falls herself below him. So now we have names to go along with all these characters.