Shellie Gillespie

I LOVE this show...I have been binge watching it every night for weeks....but one of my biggest issues with it is this: Did anyone else think it was weird when they showed Helena as a child and it wasnt the same girl who has been shown throughout the show? I mean they are clones, and even Charlotte looks like Sarah would have as a child, so wouldn't Helena look the same? Am I missing something??? Identical twins would look identical..but the character they chose wasn't even close to the same little girl... Besides that flaw, I have enjoyed it all!!! Anyone else notice a flaw that I didn't catch?? Let me know!!!