It took me a while, but I finally found the perfect recipe and the right workflow.
The result:
a "fashion" model that doesn't spill too much,
and even works as a detailer.
Very versatile > poses, hair (cut and color, but always short > it's part of her identity)
Here are her basic prompt attributes: smokey blue eyes, blonde with dyed hair, full lips, slender, skinny, busty.
Her other inherent attributes: a small button nose, squared jawline, narrowed eyes.
Have fun.