Excellent DOF control, a plus. The props hint at the context, also a plus. However, since the props play such an important role, I wouldn't want to see the girl's hand chopped. Needs more room at the bottom, and to preserve the square format it can then also use some room at the left imo. A bit more separation between the two children would be helpful to the eye. The detail and tone in the blouse and the prop is relatively equivalent and tend to look cluttered.
I don't think this image can make it in the real world, because the boys expression doesn't seem to be a result of the context, doesn't look natural. The girl's expression on the other hand is. Very telling. (The reprimand thing mentioned earlier).
Also the background is too "loud" and distracting, and doesn't contribute at all to the context. Neither helps the composition, nor the narrative. The clothes also make it somewhat chaotic and contradict the context.
btw If the girl would be standing by the ocean at sunset, staring at the waves gently rolling on the beach, it would make a wonderful image...