I would obviously be wary of using other models as reference guides!
Ryan, your first step should be looking at which tank you'd like to depict. There were only a small number of Tiger II battalions, so actual vehicle information is reasonably easy to come by.
From my information, there is relatively
little evidence of Tiger II's wearing specific winter camo.
Hastily applied whitewash was the order of the day, although that was the exception, rather than the rule.