I was going to say both females too. But that white one looks to have the begining of the little nose boil ( like a circular bump on the bill only). Feet pictures!!! And I think scoviea are the only breed that dont get the curly feather because they have such a significant size difference.
Both appear to be drakelets to me. With that much caruncling they'd have their primaries in by now if they were ducklets and they'd be much more round and less long. Drakelets do not get their flight feathers in as soon as the ducklets do.