I don't know, all I did was paste the url to the pictures and that worked alright.
The pants took two big skins, one for each leg. The vest used two medium skins, one for each side. Most people use more than 2 for pants I think, to keep the thickness more consistent throughout the item, but this way works fine I think, as long as the deer gave you big enough skins. The backpack took two smaller skins, and a bunch of scrap pieces for the straps and top.
I cut apart some jeans and a t-shirt for basic patterns but buckskin does not always translate easily to a pattern since a skin doesnt lay totally flat the way woven fabric does. So I made them big and then tailored them to fit once I roughly assembled them.
The backpack pattern I based off a paper grocery bag, haha. Made the bag taller and with a drawstring top. I kind of made up the patten as I went along but I like the way it turned out. I put a hip-belt onto the backpack to make carrying heavy stuff more comfortable.