Someone else mentioned this and I agreed, so I already replaced it before seeing this comment. The Lenna image did make a good demo, but so do other images.
I find faces a little problematic actually. Since facial recognition is such a huge part of our brain, it always seems like Primitive is ignoring the face too much and spending time on extraneous details. (I've previously experimented with weighting some areas of an image more than others in the algorithm because of this.)
I think the flower works well, but I might replace it yet again if I find an even better demo when I have more time to spend on it.
Upvoted (as with all your other posts here) because you made a perfectly valid criticism that the program author agreed with and adopted, but the geek boys got typically defensive.
It's a minor matter, but it's a shame you felt the need to remove the image when it's so useful and relevant.