Flawed

about this set.
All items in the camera are from the DAZ Store Artist.
I customize only the shape (with Goz+ZBrush) of the man from a G9 model (only shape, no skin)
Out of the camera, the side of the item out of the artist's box was created by me to control the light area and to develop the part of the flat out of the content. BUT the focus is not the model or composition, my focus is on the setting, render, and post to get a good quality with clever steps without the AI support!

Render with Iray
Focus it to create a render ready to be animable (NO Ai, thank you)
With a full 3D animation, all controls and customizations are ready.
My Goal will be to create a Short Indie cartoon.

What do I do in this scene? Composition, setting light and rendering parameters, and posture of the Genesis 9 model from DAZ.
My main focus was a solution to calibrate and apply the final effect to the render to upgrade a common render into a good render (no best but good, p.s. : your feedback is welcome).
About the Effect: 1) aberration of the channel RGB 2) no linear calibration, color, and contrast 3) mask of color crop from contrast channel