Well, it has the typical coloring if it's a Legbar, then it's a pullet. But, where is the crest?
Definitely a legbar girl! I would say she is showing the barest, barest floof of a crest in the first and third pictures. It starts as nothing more than the fluff on their head looking very slightly out of place and gradually becomes more raised as they feather out. Mine are five weeks old now and have their full floofy crests showing but two weeks ago, it was a whole different story!