The picture looks posed to me.
Yup!nobody holds a board like that in one had and a soldiering iron in the other.
The board sits on a table, or in a vice - a solid surface, one hand holds the iron, the other soldier, wire, wicking, etc.
Looks like the kid has the tip on a surface mount chip (about to destroy it completely).
I got really steady hands for soldiering, and I use a vice, rest my pinky on a surface (to steady my hand) and a big lit magnifying glass - that picture is a set-up, the kid had an Andrino computer, that is something else.