Buff Orpington hen or roo?

[newbie32]

This is what makes me think its a pullet:

1. The comb and wattles are not overly developed for a 18 week old pullet. A cockerel would have an obviously larger, thicker comb at this point.
2. The hackle (neck) feathers that I can see are not particularly shiny or pointed; both of which would be cockerel characteristics.
3. The shape of the head is not cockerel-like. At least in my opinion, cockerels almost always have a harsher glare in their eyes, and a more masculine head (longer beak, less plump head, etc.).

Thank you! I am trying to get good at spotting roosters so I can apply the techniques to my own flocks!