Current Flag:
This is actually okay. The Union Jack represents Hawaii’s historical relationship to the UK, and the stripes don’t seem to represent anything.
Unofficial Current Flag:
This is called the Kanaka Maoli flag. It’s the old flag that predates the above flag. The symbol in the middle is called a kahili, it’s part of the Royal Standard of the Kingdom of Hawaii.
My Redesign:
This took me a while. I kept elements of the original flag and the unofficial one. I squared the Union Jack so that it would represent the first flag of the US, which had a square Union Jack, and the historical relations between Hawaii and Britain.