I thought this might have really been Venice (where I'm heading next week to start a cruise!!!). The texture really comes out on this processing. This was probably a difficult lighting situation,and you did well. If you find a setting you really like make sure to save it. I often get a good customized preset and then for the rest of the shoot most shots I can just select the first item under Filter and it will repeat the same processing. If it doesn't work then I undo it and go into TA to tweak it.
i like the warm rich lighting and the details in the background behind the man - i would just look at whether you can fix the almost overly noisy skin on the main character
I love the scene and his expression. The only thing you have to watch out for is that Topaz tends to make people yellow lol. I also recommend that when you have a person in the photo, do a noise reduction run on the original before you topaz it - you'll see quite a difference!