I will try again and go a bit more "abstract" for you since i have a idea for one final image. I was trying to be abstract in the way I did the lighting on the second one.
my abstract was a beer bottle. my fisheye focuses to about 1cm from the glass so, i put the lens on the mouth of the bottle, and there's a sliver of in-focus glass on the inside of the bottle, then messed with HSL in lightroom...good guesses though.
Well not exactly, chiaroscuro is basically the technique of using light and shadow to show three dimensional form within an image. It means light-dark in Italian.