Great illustration Glicol, I like the cartridges and the gun smoke.

Just two things I would mention:

If the event took place in January ’44, the top wing roundels would have been of the earlier red/blue B type. The type with the white ring was introduced on upper wings in January 1945.

Secondly, I wonder what colours the tracer should be? I am no expert on ammunition, but I think a lot of RAF night tracer was green?? Just a thought.