There are many small things here that contribute to the whole. The foreground examples of the tradesman's work and those in the background. The checked shirt and the [atterns in the window. The display of tools. The prominent hands and their association with the work. Excellent lighting/modeling on the face. The woman and the suggestion of home. We get an appreciation of the skills and the life of the subject.
The platform, lefthand side is a bit washed out and this creates a highlight that is unnecessarily eye catching.