Thanks chaps. These seem to have struck a bit of a chord

Choose your skin tone well, I'll probably be nicking it 
Yes, the skin tone is definitely the dilemma. (It definitely won't be 'Goblin Green' though

)
Again, the information in Tolkien's works is sketchy, conflicting and often misquoted / misinterpreted. When he refers to 'black orcs' for instance, does he mean 'black' in the poetic sense (as in black-hearted, wicked) or does he literally mean they look like Africans? Or coal miners coming off shift? Probably it's 'black' in the first sense. I don't recall if he ever actually says they have 'black skin', and I don't want to get into the whole mid-C20th attitudes to ethnicity thing, which I think is a red herring as far as Tolkien is concerned.
The specific descriptive terms that have stuck in my mind (used several times IIRC), are 'swart' and 'sallow'. Which suggests a darkish complexion - but with an unhealthy pallor!
So I'll probably go for a more browny-yellowy hue than my customary 'sunny skin tone'.
Fair warning - I'm knicking the idea of combining the Oathmark kits with Victrix Saxons. Might give Viking parts a go too. :-)

Nick away Keith.
(Godammit - yours are going to be better than mine, I just know it!


)
Don’t listen to James, I bet his mum gave him that helmet when he was little 
I never listen to James, and I think you've got it right, Matt. That little orc's mama was a huge Conan fan

Oh dear. You already make me feel inadequate in WW2 and historicals - do you have to go and get into fantasy too?

Hey, don't you dare feel inadequate - not after that brilliant post-apoc greenhouse!
I'm not exactly new to fantasy... As mentioned, at school I had a Minifigs 'ME' army around 1976 when D&D was just a quirky new thing, and Games Workshop was barely a thing at all!
You must have missed my previous forays into fantasy on LAF too

15mm Hyboria:
https://leadadventureforum.com/index.php?topic=104708.028mm Game of Thrones:
https://leadadventureforum.com/index.php?topic=62778.0