Yes pic 4 is a line of cars parked in Pebble Mill Rd either awaiting scrapping or just parked a few weeks before the end while Cotteridge and Selly Oak depots were being converted for bus operation.
Pic 3 is Longbridge island, with car 744 en route to town from Rednal, and the line to Rubery branching offto the right.
Pic 2 is in the last weeks of operation at Rednal, with a new bus on driver familiarisation duty across the road. on conversion, buses used the tram terminus, with extras even queueing up round the circle on busy days.