Imperial Guard: Tank Renovation Project (Part 3e - Chimeras - decals)

I've done the penultimate step on my work on my first two Chimeras and added the decals:

I can't tell you how pleased I am with my home-made side armour!

Whilst adding the decals a few things occurred:
A multi-laser muzzle fell off (reglued),
A (proper GW; not one of my home-made) side armour panel fell off (reglued),
The penny finally dropped about what all the little protruding rectangles are around the lasguns by the oblong hatch on the hull! They're viewport-thingies so the guys shooting the lasguns can see to aim! I'd always wondered how they did that. I'll add some lens-ey paint to them before I get to the next step...

...which is weathering.

More Imperial Guard-related stuff:
More Imperial Guard Tank-related stuff: