As she looks back over her shoulder with keen interest to watch the spanking action, you can’t convince me the expression on her face is anything but a combination of delight and pleasure:
This is another artwork by Léo Fontan, aka “Fontana”.
"...the girls are prepared in the reformatory’s punishment room, naked, lying on their backs on special benches, bound with their legs spread above their heads, shamefully showing the two holes usually hidden..."
