Snow Tanks

They were made for a WG contest from last year, and now one of my future goals is to make something like these:
http://worldoftanks.ru/dcont/fb/image/oca_b_tpycax_,_jlocb_kak_jlocb_,_ojlehejiocb.jpg
http://worldoftanks.ru/dcont/fb/image/fidanwf,_rifat89.jpg

https://worldoftanks.ru/dcont/fb/image/gridinvladimir_rlwSb7V.jpg
http://worldoftanks.ru/dcont/fb/image/vaniazet_Ennmyu3.jpg
http://worldoftanks.ru/dcont/fb/image/pooolkan.jpg