The Dread Knight taking shape

So the DreadKnight is beginning to take shape, boltgunned. The "black"areas are painted with a 30/70 boltgun/black, I was quite unsure on how to paint those areas as this is my first "big" 40k thing bar the raider that ive painted. Next step is chainmail(which ive already done) then wash it with blue and black around the resesses(or how ever u type it) then a final highlight of mithril silver. NOT looking forward to paint the sword, it will probably take a nights work or more.