Finally processed my image of M45 The Pleiades -LRGB 90:120:120:120, total exposure time 7.5 hours. This was really difficult to process. There were a number of light pollution gradients and internal reflections to contend with. I was trying to achieve an image that doesn't look over processed or too blue!
After several attempts I finalised the new image. I would have liked more star colour but that will be one of the next steps on the LRGB learning curve.