9week old Orpington help

[Torripine]

I have two Orpington chicks I hatched from eggs in my group of new hens, I attempted to sex them when they were a day old using the wing tips method (I know Orpingtons are usually harder to sex and develop characteristics later) it looked like I had one of each. the one I thought was the roo, his feathers continue to develop in a way that is more consistent with roos,but now I’m not so sure, as I thought it would be extremely obvious by now. The one that I thought was a pullet still really looks like a pullet and I was comparing them to eachother as they are both Orpingtons( I’ll try to add a picture of her but Ive got two australorps and she blends in seamlessly with them rn) any help would be great

This is rue

 

[Tookie]

Female!