I designed this flag of the United Kingdom to include not only elements of the flags of Northern Ireland, England, and Scotland, but also an element of the flag of Wales. The red cross with the white border around it is from the flags of England and Northern Ireland, the blue background with the white cross on it is from the flag of England, and the green is from the flag of Wales.
The current flag of the United Kingdom is excellent also, but if this design is adopted, it would be good for many other countries besides the United Kingdom. It would be good to the United Kingdom because it would represent all four areas of the nation, but it would also be good for other countries that have the flag of the United Kingdom on their flag. Let's say Australia. If the flag of the United Kingdom was changed, the flag of Australia would have to be changed, which could result in a complete change of the flag because Australia is no longer a colony or territory of the United Kingdom. The same thing could happen with New Zealand, Tuvalu, and Fiji. Let's say Australia changed their flag, removing the Union Jack because of the change of the flag of the United Kingdom. Then all of the Australian cities and states with flags with the Union Jack in the corner of their flags would change their flags, removing the Union Jack. Same thing with the other countries. Also, other flags with the Union Jack on it could be changed, such as the flag of Hawaii, Bermuda, Ontario, Manitoba, and all the rest. And I hope that happens.