The grey/black camoflage are good here; all this needed was follow-through on the camoflage stripes (there are areas where the stripes just mysteriously end) Camoflage seems easy to paint, just splot on some color -- in truth, it's difficult to pull off realistically without looking "splotched on". :)
I think that I would have liked this mini more if it were simply in a flat scheme and without the camo. Your details, such as the weapon barrels and the limb joints, are wonderful. I just don't like the camo a great deal.