Gives the model the context and the constraints it needs to answer your case rather than the average one.
What it actually does: A young blonde woman with fair skin sitting outdoors in direct sunlight, relaxed and slightly smiling with a soft squint due to bright light..
{
"subject": {
"description": "A young blonde woman with fair skin sitting outdoors in direct sunlight, relaxed and slightly smiling with a soft squint due to bright light.",
"body": {...