Silk (if needed) then polypropolene, then wool or fleece, then your outer layer with wind stopping and water stopping qualities. You may not need all these layers every day/hunt but you will learn. A dry mild day and a cold wind-ripping-soaker are obviously different situations. A backpack with extras is a good way to go for things like an extra set of socks to change at midday.
Poly liners for your mittens or gloves, poly liners for your wool socks, and pack boots or at least well insulated boots. And most importantly YOUR HAT!!! Get a good one. It is it too hot you can always tip it back further on your head, or even remove it temporarily while you " vent" . but if you need a warmer hat later and don' t have it you' re screwed.
You can always remove layers but if you don' t have them and need them you will not be focused....you will be chattering!
How heavy your layers need to be will come with experience. After a few freezing and sweaty trips you will monitor and adjust.
Oh yeah...a neck gaiter is an excellent " accessory" for the well dressed stand sitter.