I'm saying it's in awful good condition for being at the bottom of a river. Marble is a very resilient stone, of course. But, I look at marble statues all the time and even after less than 200 years, they're showing the wear of being rained on and buffeted by wind. It seems to me that being at the bottom of a river, having the constant abrasion of water against it for 2000 years would remove at least some of the detail.