A few things that will give us a better idea.
A picture of the front of her while she is standing naturally.
A close up of the side of her head.
A close up of the top of her head.
A picture of her extended wing.
A picture of her from behind.
I know I'm asking a lot already but are you able to weigh her? When did she hatch?
She looks very nice. She doesn't have any pure white tail feathers or primaries that many SS have. That is a major plus for her. She should be good to show next year, but every time she molts she will get more white. If you are going to breed her (which I would) I would use a cockerel with less white and a broader back. From what I see it looks like her back tapers toward her tail which will cause a pinched tail.
I would show her and if you get the chance to talk to the judge, ask what he/she recommends to fix in breeding her.
Will try to get those pictures lol. She is actually couped up so doesnt get out often/ ever
. So when she is out she just wants to go go go. I havent weighed her she is pretty light yet. It seems my chickens that arent freeranged are all on the lighter side
. She hatched in the very end of April so isnt quite 6 mos old yet. Yeah no white primaries or tail feathers yet. That is the one thing that I learned was a plus for her.