That wasn't at all more info than I wanted. It's always good to know how people work out their solutions, since that might help someone else. The picture works quite well, except for some artifacts on her blouse. You should be well pleased with your results.

I can see why you wanted that photo of your wife as your wallpaper. She's very lovely there, and I bet she still is! As for age, I'm not too far behind the two of you. Congratulations on such a long life together! And thanks for posting the picture.
Edited to add: Forgot to ask earlier.... Would you post the link where you found the Irfanview instructions? Thanks!