Colour burn: top right, interesting hot pink effect
Colour dodge: picked up the white highlights, not so good on more solid colour
Hard light: Hot pink detail in top corner and purple on purple in bottom row created a subtle yet interesting effect
Lighten: These were paler than I would like, but there is an interesting effect in mixing the colours and highlighting shadow.
Overlay: The white detail in the top row is quite interesting. I am not sure I want white within the illustration but it is something a bit different. The bottom row has a lovely mix of colours
Saturation: This had a rather curious introduction of green to the images. It was a lot more effective on the photos with a dark base in the top row.
Really didn’t work:
Difference: The colour were very dark and murky.
Hue: The colours were very dull and unispiring