Thank you for sharing your reasons. I always look at the whole bird and decide upon that. I only see pullet because of the feathers, the bird looks like a nice, rounded fluffy pullet to me still. OP, I hope you will update on this one. Trying to gain some experience with sexing.I wouldn't really expect full male plumage at that age. I have an Australorp cockerel that didn't get even saddles in until 16+ weeks old. The only indicator of gender was the large, red comb. He had rounded feathers up until then.
Also, the pictures are very blurry so there's a possibility there are some coming in we just can't see. Updated images will help.