I know it is not a wartime photo. But you may be interested to see this Canadian Navy Jeep, as info on Jeeps in RCN service is so rare.
It looks this is a bog standard CJ-3A Universal Jeep, shiny paint and all. Big question: which colour would they have chosen from the catalogue? Ref.
https://www.kaiserwillys.com/about_w..._history_specs