Based on the surviving statues; no, humans have been pretty consistent in looks for the past few millennia. However people were a lot shorter then than now. For example, during the Napoleonic era, 5'7"ish was considered the standard height for a grown man. I'm guessing during the Roman times they were even shorter/if not around the same height. This had to do with nutrition mainly; your average Roman isn't going to be as well fed as your average modern American & etc.