awesome work. How do you get that fine of highlighting on the edging and what did you do to get that pink.
For the highlighting, I just use a 0/3 brush and just line codex grey along the edges. Then, if I feel that the lines are too thick, I just use chaos black and line it down again to correct it and make it thinner. If you want to use it on a vehicle, like your dread, then I'd suggest lining up with 70:30 Codex Grey and Chaos Black. Then make even thinner lines on areas where light will shine the edges the most with just Codex Grey. This simple idea will make your dread stand out against other "black" themed dreads, like Black Templars *whistles*.
The pink for my Emperor's Children, which I think I need to improve upon it, is merely heavy-metal standard (which a lot of people either don't like or not impressed by it). The base coat is Warlock Purple. Then I use Tentacle Pink (a discontinued color) as the 2nd base ,leaving some warlock purple as shadow points to the armour edges. Lastly, I just blend upwards between the ratios of Tentacle Pink and Skull White.