Thank you very much for your kind words guys!
For the snow I used polyfiller to make the groundwork, building it up in layers and used bits of foam to make the hills. All of this was coated in PVA and the scenic snow was sprinkled on top. The trees are also from woodland scenics, they are from the large tree kit, clipped to look like pines.
(Thanks to my mate John for donating them!)
The tracks and commander are painted, I see why you would think otherwise, I've put it down to lighting. Mind you, I recon the that figure could do with being lightened in colour, I'll try it later.
Thanks again,
Darren.