The first is Cessna 510 Citation Mustang, ZK-LCA. This aircraft is registered to Air Hawkes Bay of a Hastings address. By my count, this is the 4th Citation Mustang currently on the New Zealand register [not sure however if any have arrived and left in the past couple of years].
The second aircraft is a repainted Piper PA32R-301 Saratoga, ZK-ZIG, which is registered to Golden Bay Air [formerly Capital Air] of a Takaka address. I've featured this aircraft several times in the past [check out the label cloud of aircraft regos on the right], but this is the first photo of it in the current paint scheme.