Starting in the upper left, working left to right in rows:
Williams FW07 and 1976 March 761; That's me, Steve Cook, in my 1974 March 741, Shadow DN8A, Williams FW07
March 821, Brabham BT44, Ferrari 312T ?, McLaren M30
Ferrari 312T ?, 1975 March 752 F2, 1977 Wolf QR4, Penske PC4
1976 Lotus 77, Brabham BT40 F2, March 752 F2, 1975 Penske PC3
Wolf WR4, Ferriri, 1974 March 741, Ferrari
Shadow DN8