A baby in a blue jumper in a leather swing .
a baby in a jumper
A baby in a blue jumper in a leather swing.
a baby in a jumper
The baby in the first sentence is established to be wearing a blue jumper, the second sentence also has a baby in a jumper, but with less details.
The baby in the first sentence is established to be wearing a blue jumper , the second sentence also has a baby in a jumper , but with less details .