Hey, thank you for your comment :) The color-scheme for the Dark Angels is a green-sandy one. I've used it to ensure the miniature to fit into a standard Warhammer 40K army of this type.
I like the basing. The freehand on the back of the figure is great. I am inspired by your green glow in the skull of the Chaplin's right shoulder...
My only critique, if I may, is that....should a Chaplin not be black??