Hi! I found these organisms on a woman's stockings, by rinsing the fragments with serum, and I suspect their presence is the result of friction with a wall covered with mold and/or algae. These are relevant in a forensic case. I think the first 2 represent a fungus, and the last 2 pictures are some unicellular algae. Does someone have a more specific idea of what kind of organisms are in these photos?