No, not even close. Good try though.
Also the one you are calling barred Rock.. comb is too big and floppy. The white legs would be more typical of Marans.
The last one posted almost looks like an offspring cross between the barred hen and the first white stag.
She may not be laying partly due to the mites. She may have internal or other parasites as well.
Are you new to chickens? Is it possible the hard ball you are feeling is a full crop? Depending on how much light and her age... she be taking a break from laying as many hens do. She may still return to lay! But with the a recent move (?) to your place, and i they are all kept together.. being a little male heavy could be stressful.
Can't remember where you said you were... adding that in your profile will help to make the most relevant suggestions at a glance without having to ask first.

Seems like some countries have a harder time getting access to a good formulated poultry ration.. what are you feeding?