Thanks for the positive waves

The fur on the troll must have taken ages to apply
Not so long. Just applied green stuff and sculpted the fur with a sharpened edge of knife. The hard part was t take away the bumps on his back and to cut and vile the loin cloth to make him "naked".
Also, I love how his face looks like he "used his head" to take out an allied tank.

Yep, the headbutt is one of his specialties.
The weathering on those vehicles is amazing - any tips on how you achieved it?
I use a mix of Mars black + Terracota (Liquitex) to obtain a dark brown that I can easily vary the taint. Your paint has to be wet but not transparent. The technique is the same as highlighting edges, but then partially (with dots and little stripes) and with a darker color. In the end, you can apply it here and there on flat surfaces. Washes are done with the same colors and adding orange for weathering effects. Hope it helps.