Really cute. Love the little boy's expression, the expression on the man seems a little exaggerated/fake. Not sure of the title, either, why did you decide to say train and not plane, when the child is looking up?
Love the kid´s expression, notsomuch the grownups though, think he might have worked better with a less exaggarated expression but still bewildered. Anyway, nice choice of DOF and I like the clarity in the image, nice image quality. 7 from me.