No worries Mad Grot, I've just re-read the 'offending' post and there's nothing particularly negative about it - I think I mentioned in my red 'unz thredd that Milliput is such a low contrast medium that half the time even I've got to get the things in primer before I can see what I've got (so a very big thank you to everyone for putting up with the 2D versions ). As for the oils, 'going off' just means drying enough to risk trying to get a bit more acrylic paint over them.
Garslag, it's probably the case that orks have more different faces than any other 40k faction, but they also tend to have larger armies so quite a lot of duplication is pretty much inevitable. Talking of Brian Nelson, I found an old painboy
Don't know if it is one of his but it's a fairly handy Barry to help illustrate why the new arms went on the mek so easily
Think I did a reasonable job of matching the paint on the arms to the face.
Have to see if I can get some slightly more relevant 'threat' pikkies up later (tried to post this last night but photobukkit wasn't playing).