No extra points for me then but the issue didn't start with the Mk3 and it's not limited to the Tridents. I've yet to see the Mk3 in the flesh so the comments are only based on the photos.
Swap the location (or colours) of name and flags.
On the GMT I'd like to see red writing and a red GMT hand to match.
The arrow on the hour hand very slightly shorter maybe.
The square end of both hands to be slightly shorter so the minute hand doesn't overlap the arrow base of the hour hand when opposite each other.
Date wheel colour to match the dial colour on blue watch.
Remove the painted square around the date.
Add "Trident" back onto the dial and move movement type or WR/depth rating onto back plate.
I reserve the right to change my mind on any of the above if somebody does some mock-ups of the suggestions and I don't like what I've suggested.
TBH - I'm nit-picking and would probably go and buy a blue GMT if only CW would move what would have earned me extra points had I not mentioned it (3 times here

).