some artists can work around red-allergy clients by mixing a small amount of green into the black ink in the outlines, then using gray shading. the green ink fools your eye into thinking the gray is actually red since they're spectrum opposites.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger-all down here on Earth.
Loki/Grendel/Gail/Beowulf/Camilla/River/Bathory/Arwen/Lafayette/Deb/Jack Skellington (soon)