Whilst the skull from which the forensic facial reconstruction was based upon was pretty gnarly and frankly terrifying, it turns out that Good King Henry almost looked like what you'd expect Santa Claus to look like. A kind faced elderly man who looked aged beyond his years considering he died at age 57. All of those battles must have taken their toll on King Henry.
So, how does he compare to his portraits? It's hard to say given the fact that looking at each of them he looks like an entirely different person. Perhaps some of the portrait artists were kinder than others, on a lot of the portraits he seemed to have a quite obtrusive double chin thing going on, maybe that's why those ruffled collars were so popular back then? It's quite possible.