Looks good, but to my admittedly uneducated eye the South Island seems a bit thick along the upper half and maybe a bit short compared to the North island. I'd suggest maybe shaving the top one or two mountains on the South Island and moving the whole South Island 1SW adding two more on the NE coast. Might be too long though.Here's my remake of Aotearoa. A bit wider than in reality, but necessary to preserve some accuracy of shape. Position of the North and South Island aren't quite right relative to each other, but I feel this is the best possible arrangement. Everything else either links the islands (yuck) or messes with latitude too much.
View attachment 496014
EDIT: Just noticed the Shellfish/Clam resource isn't showing. It's on the same tile as the island feature at the bottom of the South Island.
EDIT: Connecting would solve the latitudinal discrepancy