As far as I am aware, this piece is actually called “Riddle”, but what draws one’s attention is the unique instrument tucked under the boy’s arm.
Without doubt, a Xaphoon, since the artist herself is from the exact same region where Brian Wittman invented it back in 1972.
This picture is actually a cropping of a much larger work of art, featuring this loveable but mischievous boy, having a laugh amongst the gardens with his friends.
Strikingly, he reminds me of Peter Pan, yet more to the point, if the Pocket Sax had actually been invented during J.M. Barrie’s lifetime, would the Xaphoon have then been the actual flute of Peter Pan?
Looks fairly conclusive to me.