Sebright or not a Sebright

That is the question.. is it sebright or a cross breed or a completely different breed altogether

I have a friend who has golden sebrights. The chest feathers look right to me - small, tight lacing - but the back doesn’t have that lacing and doesn’t look right. Just based on my experience with her hens and rooster.

That’s what I thought... the front is right for a sebright but the back head and legs and the shape of the wings indicate she is not a sebright... is it possible that she is a Sebright x Wyandotte?

I must add though she only between 13-16 weeks old... maybe a bit younger....