Here you can see the honorific wreathed skull on the stowage bins at the rear of the turret. So it's either a battle honour or other signifier; FOO tank or somesuch.
Hopefully the streaking and the dust will show up.
The tracks (and some of the actual structure) has wear and chipping (mostly 8B pencil).
So, I'm happy with this. It does not fit with the existing fluff at the minute, but I'm sure I can work it in somewhere.