Skull Mask Colour Work

First attempts at trying to colour in the mask - main thing I want with this is for it to appear earthy and have dull colours, nothing too bright or vibrant. I used some copic pens on the bone chest piece but then sicne I'm not that great at colour work I scanned it in from there and finished the rest digitally.
Overall I'm really happy with how this looks but I'm starting to the think that green on the cloak is a bit too bright now that I've printed it out and examined it far too much XD.  

breyvan.deviantart.com/art/Sku… - No colour version 
breyvan.deviantart.com/art/Sku… - Enhanced Colour.