did these studies on the same day last weekend. the bottom one I painted looking through a fence from across the street .It's a Steel mill and I was watching them dump this hot shit on the back of this dump truck. I would like to go back during the night and try to capture it. I was painting under a overpass and cars would drive by me getting on the freeway, it was very busy and noisy. I don't know what it was but people kept honking at me. Everytime it scared the crap out of me . So I painted fast, only trying to get the color. next time.