Not sure if you are really asking a question, but last year four of us were hunting in layout blinds in the snow. Two of us were using store bought white snow covers for our blinds and two used white sheets cut to fit the blinds. Birds were flaring. I had taken a picture of the blinds at the end of the day and the sheets had a blue hue to them, while the store bought ones did not. The material used does seem to matter.
Keep life simple...if you hear hoofbeats, think horses, not zebras.