It is better, even though she is stretched out un-naturally. I think her tail looks balanced for her body. She would not do well at a really big show against the super fluffy ones, but she is a nice looking bird. Definitely breeder quality (as long as she doesn't have any defects that would disqualify her) and can be shown at local shows and probably place well.
Do not worry about lockdown with a broody hen. She will take care of them. If she is a first time broody she might make some errors - but it is instinct and they still do better than an incubator even on their first try.
There is a lot of information on broodies on the Old Fashioned Broody Thread, but its a long thread to read through (I am working on it now). Basically - keep other birds away from her nest to prevent breakage or damage to the chicks, make sure the babies can't fall out of the nest or get parted from momma where she can't protect them, make sure the area she will be in with the babies is chick proof (chick waterers they can't drown in, small feeders, no escape spots), its best to keep her enclosed for the first 3 days or until she decides to take the hatched ones out of the nest.
Other things I have found: Not all broodies are great mommas. Some are stupid. Some are prejudiced and will kill the wrong colored chicks, even though THEY hatched them. Some will sit there while other chickens are attacking their chicks and will not protect them. I usually separate new broodies for a week or so to let the momma learn about taking care of the chicks, and the chicks learn about listening to momma. Watch them the first few days and make sure they are getting it right.
Most broodies can regulate the temperatures of the eggs to speed up the later ones and slow down the newer ones. Over a week would be a concern. She might push the earlier ones out of the center to cool them off and put the later ones in the middle to speed them up.
I had a hen who was a cross - she laid eggs the whole time she was incubating - didn't stop until about three days before the chicks hatched. Her last 10 eggs were not fertile (because she wouldn't let the rooster near her) but she fooled me into thinking her eggs were the other hen's eggs - until I hatched them and realized they were hers. So I would say not all hens stop laying.