The editing is spot on, but seeing as how none of it is original...
Just one question... Why is it in 4:3?
This was what I'm afraid of, yes I don't exactly make original mocks, which is why I tried to label this as a recreation and not a mock as such. I wasn't sure whether to post this but I just wanted to share it so apologies.
(warning: long-winded explanation ahead) It's in 4:3 for two reasons. First reason being that all of the titles apart from the 2002 and 2003 titles are in 4:3. Even then, I could only source 4:3 versions of the 2002 titles taken from Top of the Pops 2 broadcasts. As well as this, I could also only source the 2003 titles in 14:9; although I did find a 16:9 copy afterwards, it wasn't as good quality as the 14:9 copy.
The other reason was that I wanted to create a version of the 16:9 montage titles uncropped. If I exported the movie in 16:9 you'd get about a second or two of 14:9 footage with the rest in 4:3. It made sense to just crop the 14:9 footage to 4:3 instead of having black bars all the way through.