As others have said already, these are simply AMAZING! The blends are really something special at that scale and the detail work is top notch.
I'd like to make a general comment on the use of oil based paints as well. It's something you tend to see more with miniature hobbyistthan with wargamers [there are a few factors that contribute to this that range from drying times to marketing]. That said, I think this is a perfect example of the increased depth and richness of tone that oils can lend to a project.
Well done!