Thanks guys.
Cheers shorty! Well, this is pretty much my first time doing this so not really sure I'm the right person to give tips as such.
But all I did was first make the Racoon circles darker. Mixed black acrylic with some white and a tiny bit of brown to make it lighter shade. Watered it down and effectively only dry brushing very lightly. I then blended the edges and scratched off a little paint to soften the circle.
Repainted the mouth with a more vibrant, again watered down, red and cleaned up the outline with white.
The white I used for that and the rest of the face is a mix of a TINY bit of black with the white to make it off white and then a smudge of flesh tone. (need to go back to te flesh tone parts exposed at the wrinkles this weekend.)
Basically used a stippling effect with a dry brush application and then pressed and smudged with my fingers to blend.