After discussion at forums - LEMB, 12'o clock. I've prepared third version of hypothetical view of Ju 88 A-4 of 6./KG 30. Aircraft was built at 1942 year - so the most probably it had standard RLM 70 / RLM 71 camouflage.
I've decided to pattern this one with wellmunster RLM 76 waves and RLM 22 waves under engine's cowlings. Bottom of aircraft is black.
Balkenkreuz and code nb are in my reconstruction repainted by any color.
I've left code nb black and spinners at RLM 70 - we have no info about it.