GBPNZD looks like its about to confirm the 4 hour candle breaking/retesting the structure. If it closes 2.21000 or lower - look for strong sells down to 2,2020 and then a further break would lead to much lower lows such as 2.18 or beyond.
Keep in mind that the long term structure of GBPNZD, similar to GBPAUD does not change with this move lower that could last several days. Long term outlook remains bullish and this would likely lead to another buying opportunity lower.