Greebo,
I don't know why I called you Guppy in my first response, sorry. Would you be so kind to upload this skin to a filesharing site as I would love to take a more detailed look at it offline, if pos.
From the screen shots you posted, it looks like you've got the colour spot on!
The specularity raise has worked wonders where previously the skin had way to much of a mat/dull feel.