Good effort, but the stars are incorrect. they have a white border.
See https://nzhistory.govt.nz/media/photo/new-zealand-flag
or official government source
Ministry for Culture and Heritage: https://mch.govt.nz/nz-identity-heritage/flags

lovely.

Although the stars should have white borders around them, I really like this theme

This flag is not correct - all four stars of the Southern cross have a white border.