I'd say pullet as theres no evidence of black on the breast yet.. usually there are patches of much darker or black color. hers is dark and 'even colored' like on a welsumer pullet.
Do they get hackle feathers that young? I'm still a newbie, so I'm not sure, but it just kind of looks like the cases that feathers come in poking through on the neck? Her/his colouring looks similar to my girls. The face does look a little boyish, but I don't know. This is one of mine at a similar age I think