Suzanne,
Overall, not bad! You had a difficult photograph to work on.
Areas that you might consider improvement on is capturing more detail in the hat and coat, a little dark when compared with the original. Just a note . . . I noticed a lot of noise with the blue channel, you could probably copy the green and paste it into the blue if you don't mind the extra effort. You can then adjust the new channel with the channel mixer.
Many of the older budget camera's had a tendency to destort images a bit. The left side is crooked and the right side is straight . . . go figure.

I'm into astronomy and the same applies to the old "budget" telescopes. Still, you'll see this frequently with old photographs, it's something you can fix, or if you're a purist, you can let it ride. Afterall, it's a restoration.
The door looks colorless, having the bricks bright seems to make this more obvious. A little color would look better.
The fellow on the right, the same would apply to his shoes.
Skin tones are reasonable.
Bottom line, you're doing fine. It's just one of those occupations/hobby that is a continuous learning process. If you enjoy doing it, you can only become better (Then a new version comes out).