hello and help
Introduce Yourself
Also, it appears you've braided a section on the back of the head. Doing this will in no way help the hair dread -- in fact, it will only take longer. Maybe a lot longer. Backcombing isn't the method I'd recommend, due to the hair damage (especially since you bleached as well), but if you're set on it, knotty described it well above. I'd personally go natural ("neglect"), but twist and rip is fine. I agree with everyone else too: those sections are pretty large. Mature dreads usually end up the thickness of the sections, so he could have very thick dreads. And by the look of it, maybe only around 20 total.