Thanks guys. The tsunami of blood one had become more procreate painting than image manipulation .... last one was a rare trip to brushstroke and a bit of fragment action. The different colours were either stackables or procreate using colour drop feature - you can drag a selected colour onto the image and it fills up to the lines to varying degrees and has a threshold. Or you can create a new layer and drop a fill and play with opacity too.
Lisa - thanks, the original image would be the two city skyline shots I blended and there was one more too of Exchange Square, the old stock exchange building, which i superimposed out of its normal place and is the structure on the right of the image.
Other than that, I put one of the Last Exit visuals into glitche and and variously kept using the scene, lines, moire, emoji, liquify and edge buttons to do