They remained in hospital in a comfortable condition, police said.
Sergeant Colin Stewart said Mr Pickering was not wearing a seatbelt and was thrown from the vehicle.
He died at the scene.
Mr Stewart said it appeared the small truck had been about to turn right or was turning when it was clipped by Mr Pickering's vehicle.
Woodend deputy chief fire officer Lewis Grant said the sport utility had gone about 15 metres off the road through a fence and into a paddock.
The two girls were out by the time firefighters arrived and were being nursed by members of the public.
Two people were administering CPR on the driver, who was lying some distance from the vehicle.
"We also tried to use the defibrillator on him but that was unsuccessful and the ambulance took over from there,'' Mr Grant said.
The vehicle's windscreen was broken.
"The whole crew did a very professional and a very good job and there's nothing more that we could have done.''
Inquiries into the crash were continuing.
