It appears that you may still have the "Specular" and/or "Highlight" options adding to the render.
Make sure those parameters are BLACK and set to zero (0), also, and see if that helps.

cheers,
dr geep
;=]

Remember ... "With Poser, all things are possible, and poseable!"

cheers,

dr geep ... :o]

edited 10/5/2019