Wow Babs - thanks for going to all this bother. I find it so different that the two colours on the original are almost identical to the two colours on the inverted image - they must just swap to each other - that's pretty amazing. The solarized one and its invert are also interesting. I really like the almost sketch feel to the invert of the solarized one. Thanks again so much - this is all so cool. :)
@robz Yes I noticed that the inverted one had just swapped the black background for white and the two colours were just swapped too and I did like the sketch feel about the inverted and solarized one on the right.