clair obscur render

[Finema]

Hi,
I'm searching for help or tutorial about "clair obscur" render.
I know i can do that in post production in Photoshop BUT :
What is the good way to render "irrisante" light on an object in black background in KS ?
ok >
step 1 i create an HRDI black
step 2 i add little light in HDRI editor
but the result isn't enough realistic.
i join an example in attachment.
thanks

[Finema]

the screenshot in attachment is what i want for result

[Finema]

my WIP
black environment
Plane with IES spot light texture
backdrop ramp

[Finema]

an other with color light and depth field

[edwardo]

Have you tried using an area light or an IES?
Ed

[Finema]

closer

[Finema]

Hi edwardo
as i wrote above, yes i use IES with a plane.