I'd agree, but open the first image up - the comb is quite large for an EE.the only thing about the tail that says cockerel is the shape of the 2 sickle feathers color has nothing to do with it but again that's the only thing that says cockerel over appearance says pullet
The two other pictures resemble a pullet besides those tail feathers (sickles) and even then - I don't find sickles that reliable to indicate gender. I've had a couple girls that had them (they fell off during juvenile molt).
I agree - the colour will be blue/green sheen even if it was a girl. It's shine in saddle and hackle feathers (not sheen) that are signs of boys.
16 weeks for a definite answer. I really don't think this is a case of "Yes - for sure a too" or "That is such a girl". It's a toss up. This is a tough one!