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It was indeed a on 91, TE1745. (Formerly First DN33605)
https://www.standard.co.uk/news/london/roof-of-bus-torn-off-after-double-decker-hits-tree-in-central-london-10018258.html
The unit-end gangway on 450’s, is split black/yellow like this:
https://upload.wikimedia.org/wikipedia/commons/0/0c/20230527_SWR_450054.jpg
In contrast, the refurb 458’s gangway is full yellow.
Around the time the Crossrail Bill was going through parliament(?), Canary Wharf Station initially was named “Isle Of Dogs”.
http://www.projectmapping.co.uk/Reviews/Resources/Crossrail%20geo%2072007.pdf