Looking for gender help on Barnevelder

[Jgalla11]

My first flock they’re about 2 months old I know it’s early considering but I have one that looks completely different and acts completely different looking for some insight to see if it’s a rooster or not like I think it is. I’ve added some photos by itself and one with the rest of the crew it’s under the arrow. Any guidance is appreciated

 

[SilverBirds]

Pullet!

 

[Painted Calls]

Pullet