Hi Ian, sorry took so long to reply I'm in the aircraft forum the most.
Yes I painted the dam bomb on my Tamiya 1/48th silver, although I
suspect it was probably sprayed black before the missions in real life.
You are fortunate to get to hear and see real Lancs. I can't imagine the sound in real life.
I love your diorama. I'm from New England, but I'm in London now and then.
I think the Imperial War Museum has a field maybe in Hertfordshire where they still fly spitfires and such.
You can check there website. The museum in London is fantastic.