After reading this, I investigated the Dragonborn Subtype. Firstly this race (far as I know) is not at all approved for play here in Therafim. Secondly, The Zhentarim Fighter option was on the table, but we're still waiting on Jenn to sign off on it before you can use it.
Also, Its clear you disregarded the section on rebirth into a Dragonborn. This in particular:
If your original race granted bonus skill points, you should deduct an appropriate amount of skill points from your current skill ranks. The specific skills affected are up to you, but the DM’s input might be required to adjudicate tricky situations (such as multiclass characters who might have
purchased ranks of various skills as both class skills and cross-class skills).
The loss of racial traits might mean you no longer meet the prerequisites for a prestige class, feat, or some other feature. In general, you lose any special ability for which you no longer qualify, and nothing is gained in its place. A couple of exceptions exist.
• If you no longer qualify for a feat due to the transformation, you lose the feat and immediately select a new feat for which you qualify in its place. You must also replace any feat for which the lost feat was a prerequisite.
• If you no longer qualify for a prestige class, you lose the benefit of any class features or other special abilities granted by the class. You retain Hit Dice gained from advancing in the class, as well as any improvements to base attack bonus and base save bonuses that the class provided. If you later meet all the prerequisites for the class, you regain the benefits.
Secondly, RE the Zhentarim Fighter option. I see no mechanical reason not to take it or anything wrong with it, but it's not approved for play yet (See Jenn).
Third: Three half races? You gotta be kidding XD.
Anyway, We'll see what turns up for now. Until then, I've moved this to unfinished.