Ha. Me too.
But it's always good to come back and have another look at the sculpt. Strangely, I think what's throwing it off just a little is the neutral expression. I actually think a bit of a brow furrow would help knock this one out of the park. Boromir was always scowling. He's constantly worried or suspicious or nervous. It's part of who he is as a character.
He looks a little too carefree in this sculpt. So it does look like Sean Bean, but it doesn't quite look like Boromir ... if that makes any sense. Give him the expression Asmus gave Merry and we're in business!