Lavender Araucanas - 3 weeks - UK type - Chick sexing

[LDev]

I have 3 Lavenders at 3 weeks old on Sunday. 1 is particularly large and is starting to get domed head but that one had hatched a day before the others. This post has really helped me with what to look for but I have a hunch that I have at least one cockerel

 

[TheOddOneOut]

Hello!
I have 2 Lavender Araucana chicks. They are 3 weeks at the moment and I was wondering if it was possible to tell which is which (hopefully not two roosters). One has a more pronounced comb and its redder than the other's.
P.S. I added a photo from the internet of how the grown-ups should look like. Not my photo.

Chick No.1 which I suspect might be a rooster (has a redder and a bit bigger comb)
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Chick no.2 which I hope is a hen
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Difficult to get a good photo of both together but Chick no.1 (suspected boy) on the left and chick no.2 (suspected girl) on the right.
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How grown ups should look like (not my photos, took from the internet search results).
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Two is your girl.
ETA: I see you have rehomed no. One.