You've got a great expression. I'd consider increasing the contrast and perhaps teh sharpness a bit to play up the smile line around his eyes as well as the twinkle in them. And I think I'd tone it a bit more towards sepia, which would make it "feel" a bit more aged.
What a great face and portrait. I think I'd mask/erase the grain you added around the eyes for sure and ease it off elsewhere. I like Bobbie's idea of adding a sepia tone.
I'm third in for the sepia toning....this face shows tons of personality and character!
I'm not sure why you want to age the photo... it is a great contemporary portrait. I'd crop out the most the white from the top of the photo as I find it serves no purpose except to draw the eyes away from this wonderful face. I might play with the contrast more.
What a nice photo of your dad. I think you got some great ideas. I agree that sepia will certainly make the photo look "aged". I also like Judi's suggestion about cropping out the white. I do believe you accomplished the hardest part of portraits - getting an interesting photo of your subject!
Love the expression on his face that you were able to capture. I think it's perfect just the way it is~
Looks like you may have used a higher ISO on this picture. Next time try knocking it down a bit and that will take out some of the noise.http://throughaphotographerseyes.blogspot.com/