These are all Ausf.G vehicles, produced between March and April 1943- 2 Bosch lights, turret Schuerzen mounted to forward Schuerzen bracket with 2 bolts.
Top to bottom:
First picture-no idea…image too blurry…
Second picture- this must be a Krupp vehicle(the type of spare wheels box is typical for Krupp Panzer IV’s), although gun cleaning rods arrangement( with brush on bottom) points to Vomag/Ni-Werke. Note side Schuerzen stored on turret roof
Third picture- another Krupp vehicle(Bosch light cable coming from behind the lamp, latch visible on open front door of turret Schuerzen).
Fourth picture- nice puzzle here.
The vehicle has Vomag style of spare wheel box, Krupp style of cleaning rod arrangement and Krupp style of Bosch lamp cable.
The hollow guide horns of the spare tracks also points to Krupp.
The 2 part commander hatch and the cutout on the welded superstructure armor above the driver visor are pre-April 1943 features, but the C-hooks came in use later-May/June 1943.This might be an L/43 armed Panzer IV.
I assume fifth and sixth picture show the same vehicle and I think it is another Krupp production Panzer IV- hollow guide horns of tracks and Krupp style spare wheels box, yet the overhead view shows it has a wheel retaining bar mounted. S-hooks are still in use and Schuerzen are once again stored on turret top. It is also possible, that this vehicle is the one from the second picture.