I love this mini and the way you have painted it with black robes and red cape. You should REALLY drill out the barrel on the plasmagun though. It kinda hurts the mini. I still can't get over how the cape can hang so freely under the backpack.
I used to really dislike this miniature, and Dark Angels in general, but now that i have seen this, i must-resist-urge-to-buy-new-army-must-finish-current-army. Seriously though, it's a great paint job you've done on this one.
Great, but I think the cowl/hood part of his robe could do with slightly more highlighting.
Im also not a fan of the nmm on the cloak - not the EFFECT - which is very well done, but it's placement on fabric - I know it could be gold thread, blah blah, but I just don't think it looks right :)
Also, the base is a bit bland but that's minor.
Weapon and face are fantastic though, and overall you've done this GREAT figure justice.