Hi
Glad that all has gone well. In our nearly 20 years experience on here with unplanned births of all ages, the odds turn against successful births only once sows are past their natural ideal pup bearing age (which in their wild ancestor species coincides with average life span of 3 years). Until that age, more births will go well than not and you still can tweak the odds a bit more in your favour with your good general care.
It is very much a breeder myth that sows past the 'perfect' breeding age of 6 months are suddenly at death's door by 8 months. In fact, as we have found on here, it is a very gradual process over the course of several years. By 4 years, the risk of miscarriage and dead born/not viable pups is starting to become significant; by 5 years, death rates in the mothers are going up because there are more single larger pups (due to more embryos dying off early in the womb). By that age you can usually count yourself lucky if the mother survives; the majority of pups won't. Older pregnancies generally end with the death of both mother and pups.
The ginger baby on the right is definitely a girl. The other two picturesare unfortunately at an awkward angle and it is impossible to see the full genitalia, especially as there is quite a lot of pressure on them.