Round bottles and flat bottles

A curious effect: the front bottles have a three-dimensional look but the back ones look flat, almost like a picture. There is flat light at the back, obviously, but perhaps the small depth of field on the 150mm lens also contributed. (150mm on 6x4.5 = 100mm on 35mm film or full frame digital.)
Ilford HP5+ film developed commercially in Kodak XTOL.
Zenza Bronica ETRS camera with Zenzanon MC 150mm f3.5 lens.
Epson Perfection V750 PRO scanner.