I think its Namoki too. Kera still has small plucked areas on her upper arms.
Namoki is well grown for her age. If Jock does not breed with the older females again soon, maybe they should consider moving him and getting in another male- in which case Namoki could stay at Bristol as another breeder.
I believe Romina may have become pregnant and miscarried while Namoki was still very young. AFAIK not since (but not sure on that). Normally a female would become pregnant again when the earlier baby is 3-4 years old. Bit of a mystery here.