Gerry: this is an old thread. I hope you still monitor it. Thanks for posting your pics. Here are a few historical quibbles that I saw:
1) Almost NEVER paint the insides of hatches white. Makes the tank visible to enemy observation. Only seen on a handful of pre-war German vehicles. Common mistake by modelers.
2) the camo net and fuel cans atop the Tiger 1. Very dangerous (fuel) and would obstruct the view of the commander -- again, very dangerous. He acquires targets and calls out where the enemy is -- he'd never allow anything that would foul his vision. Also, that stuff would fall behind the mantle and jam the elevation of the gun. Finally, the Tiger 1 commander's hatch is rotated to 6 o'clock. It was not rotatable: it should be at 2 o'clock.
3) Brumbar chain: again, very dangerous -- easily could fall and entangle the suspension. Plus, chains have no worth to an AFV besides perhaps hauling out an engine or transmission. Tanks used cables. Chains are only seen on prewar French armor and mistakenly commonly used by modelers.
As a rule of thumb with additional stowage on your vehicles: always ask yourself: "do they hinder fighting (turret traverse, elevation), do they hinder sight lines (commander, driver, etc.), are they an undue hazard (fuel cans atop the turret, chains not bagged and stowed away), would they fall off at the first bump or hill undulation, do they prevent a quick escape if a tank is hit?"
Hope these help