Again, I don't think that this is really hyperrealism anyway and am a bit confused why it's being labeled as such.
The dismissive comments here are confusing because it seems there's a rush to say "it's not that impressive." I think at minimum it is technically impressive for someone that age. Prodigy? Perhaps not, but it's noteworthy that he's done this at this level.
Art is of course always going to be a subjective discussion, so I don't see much point in arguing whether this is "good" or not, but I can say that personally I found the moments and poses evocative enough, which is not something I experience with any given piece of art. It's in the eye of the beholder, of course.
But they resonated in the way that unique moments in life get cemented in your subconscious, only to be plucked out by others who feel and experience and finally commit them to some medium to share.
If this is indeed his work I'm impressed given his age.