Thanks, I am fortunate to have a few photos of the art before it was painted over which has helped as I know what I’m looking for. One of the squadrons this aircraft belonged to (6ELT?) painted several of their planes with this design although each one was individual in that the colour of the wings was different, I have seen pink, green, blue, white and black at least. To find out this information you have to use google translate and delve into some Polish spotter forums!
Back to my other question, I seem to recall that the RAF museum or someone similar was preserving their aircraft with a coating that could be removed safely at a future date if the need ever arose.
Cheers Paul