lora (weight) from -0.5 to 1

minus - is more cozy / natural / bit more bokeh
plus - is more straight mostly more background, less bokeh, bit less face-details

look -> image post

bokeh have two versions (lora (weak / strong) from -0.4 to 0.8

you can use CFG-Scale higher than 2, it generates slower i know, but it is the requirement for mor details like the description on FLUX_Distilled
https://civarchive.com/models/843551?modelVersionId=943787

training were pictures with patterns and silhouettes, including the inversion (negative image) without captions.

it adds details, it adds a background at a simple prompt even if you don't call it.

What i have found out that . . .

first the schedule-type is important (DDIM or SGM-Uniform or BETA)
you can also try FluxRealisitic with this three schedulers

second the prompt order and some usefull trigger are important

eg:

"detailed, sharp outlines, contrast, wide angle lens captures the entire scen with a street or clouds (your words for details in background eg: car, people, building)",

and then the object of interest

"a woman in front posing on a street"

and on simple prompt eg: "photo of a woman" it adds at least a blurry background

avoid the word photo, portrait that makes more bokeh

play with it ... and tell me