The best images I know of so far are Jay Matternes' reconstructions:
Jay Matternes' reconstructions of Neanderthals appeared in the Oct. 81 issue of "Science". Scientists had known for some time that the standard reconstructions were based entirely on early, arthritic skeletons, but nobody had really done a serious job of reconstructing an image of these people from more recent evidence.
Neanderthals are supposed to have died out 50,000 years ago; another one of these standard time frames based upon projecting present conditions and processes into the distant past.
Somebody may have forgotten to tell the artists and sculptors of Harappa and Mohenjo Daro (about 1500 BC) about this...
Sir Mortimer Wheeler "Civilizations of the Indus Valley and Beyond notes that the physical type noted, which he calls a "priest/king type" appears in statues along with other images more easily recognizable as modern people, and assumes that the type shown is non-representational art.
