I'm not a 40k player, or even a model collector, but I enjoy looking at models other peoplw have painted and have passing knowledge of the lore.
I really like the paint jobs you've done - I saw another of your posts the other day, and it was great.
Are there somewhat agreed upon colour schemes by the 40k community? I know some of the human models need colours for their factions (like salamanders etc). Is it the same way with the other groups?