1. It's actually South Georgia and the South Sandwich Islands.
2. Akrotiri and Dhekelia should be 1 entity.
3. You're missing the Turks and Caicos Islands.
4. Sealand shouldn't count as a territory as it's completely unrecognized.
5. The Shetland Islands shouldn't be included either.
This is all advice if you want to be more accurate.
1. It's actually South Georgia and the South Sandwich Islands.
2. Akrotiri and Dhekelia should be 1 entity.
3. You're missing the Turks and Caicos Islands.
4. Sealand shouldn't count as a territory as it's completely unrecognized.
5. The Shetland Islands shouldn't be included either.
This is all advice if you want to be more accurate.