These images are all photograms.  They are also known as sun pictures.  I found some old photograph paper from my days in the dark room and decided to experiment.  Using leaves, stems, dried flowers, seeds, coffee grounds, vinegar, water and washing up liquid (!) I had fun creating these images.  Because I had no fixer or stop bath I had to find a way of capturing the images as they developed in the sun.  Too much light and they would disappear.  I scanned each picture to preserve it digitally and then experimented in the editor!