Thanks Guys.

Had a sneaky peek at it a while ago and the colour seems to have faded as it dried but the special steel wool in white vinegar solution is yet to be applied tomorrow night. Can't wait to see how that turns out however the theory is it should be more grey/black than light brown as it looks in these shots.

Reckon that left over coffee grinds would produce a stronger brew than Tea if that was to be the final stage of the process but my research indicated that Tanins had to be introduced for the chemical reaction to work properly. One more sleep before we find out.