a fellow PI user - congratulations. Going well - need to use your starmask and your luminance extraction(inverted) to apply as a mask through pixel math then apply a HDR to the image to bring out the detail of the swamp area then use the curves to bring up the colour to suit. like most things trial and error is foremost
and as for Harry's videos - priceless. i wonder how many more people will have a go with PI after the imaging conference this weekend