Why would he look different today than what he looked late in late 1700's? Other than our appearance does change over time. However, even AI should have been able to adjust the clothing and hair style to the time in history when he would have been the approximate age of the photo. But then I am not thrilled about AI and all the excitement and hysteria related to AI.
I've watched this video and some others of historic features. The picture shows a very handsome man. I wonder if GW would have been that nice looking in real life.