While I've never bred them, the Elongatus Chewere I've seen have always had a diamond pattern of blue along their sides, where as yours have vertical barring. I suppose there's a chance that they grow into the diamond pattern from barring, but I suspect they don't. Someone please correct me if I'm wrong.
The best quality Chewere have really crisp diamonds, but the poorer quality fish do phase into what might be interpritted as incomplete barring, though not nearly as much as shown in your photos. IMO, there's a chance that what you have is a different elongatus or you've got a group of crossbred fish.