Annalia S.'s photos with the keyword: light and shadows

Light and shadows play on a grid protecting a vent and generate an optical effect: if you look at the image for a couple of seconds, you will see small grey dots appearing and disappearing where the lines criss-cross. I want to dedicate this to Goandgo, who is responsible for inspiring me to look with a different eye at these utilitarian subjects, supposedly "boring" and common place but actually quite interesting when the light plays on them! Hope everyone has a great HFF!