Wow! Some -VERY- impressive models there. Did you scratchbuild them yourself?
I'd really like to see some more pics of your vehicle collection - maybe you should create
a "gallery" website showing your creations? Like the "Small-Scale AFV Museum" (http://www.msu.edu/user/storto/afv.htm) but
1/6 rather than 1/76!
You could do with a few more Allied vehicles, though - even if you're not much of an Allied AFV fan, those Tigers and Panthers need something to shoot at :)
I have also become interested in large-scale AFV modelling recently
(not 1/6th though, I just don't have the space :D !) - anything from 1/9 to
1/24. So far I've rebuilt a couple of 1/24 toys (a Sherman and M2 Bradley) and
have rebuilt them as scale models, and have recently bought a 1/9 SdKfz.222 and 1/12
M551 Sheridan to do the same. As you say, this sort of size of model gives huge potential
for "superdetailing".
I have also started scratchbuilding 1/24 WW2 AFVs with the intention of eventually building up a comprehensive
collection (like your one but rather smaller) but have put these to the side for the time being whilst I
concentrate on finishing the Bradley.
Of course I'll still be building 1/72 and 1/35 kits as well (and aircraft)!
I have occasionally tried scratchbuilding large-scale aeroplanes, however the much more
complex shapes of aircraft mean that this is MUCH harder than AFVs and even harder to get
good-looking results. I have built a 1/24 Bristol F.2B Fighter (WW1 2-seat biplane) which is quite impressive
but rather crude in parts, and converted a Guillows P-51D flying balsa model to a static scale
model (with plastic skinning). AFVs are much less frustrating and more enjoyable to scratchbuild though. The only
thing I can't get the hang of is tyres for wheeled vehicles. Other than casting them in resin, I can't think of an
effective way to produce these in large-scale models. Hence all my future 1/24 projects are tracked vehicles at the minute :)