Here's what I meant... only for the sake of clarity. If you already have the effect you are looking for, then by all means ignore this!  (Click image to enlarge). :O)

• Image_Map_4 (the colour map) now goes to the Velvet_Color channel via both colour inputs of a Blender node, instead of directly. The Blender node has two colour values, Value_1 is the original Velvet_Color (used for the base coat areas), and Value_2 is somewhat lighter (used for the feathered areas).

• The Blending value comes from the displacement map. Dark areas in the displacement map will use the original Velvet_Color, while lighter areas will blend in the lighter shade.

(edit) by the way, you use Feet as your display units, while I use Inches. My Displacement value of 1.0 inch is the same as your 0.083333 Feet.

• I could not see your displacement map (Image_Map_3), but if it has a mid-grey colour to represent areas with zero displacement (instead of the black which Poser requires) then you need to subtract around 0.5 from it using a Math_Functions node. I have used this new value not only for the Blender node but also for the Displacement channel. If your displacement map is already correct for Poser, then you do not need the Math subtract node; just plug the displacement map directly into these two channels.

• I disconnected the Noise node, simply because it isn't doing anything: the min and max values are both zero, so the output is completely black (zero).

(edit) by the way, I forgot to change the Displacement value on my shader. Mine is still set to 1.0 inches... just ignore it

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)