My process
It's the same for all jeans :

I choose my jean, I look the style, the brand, the origin and the texture. After, I choose my part and I cut. After, I cut my background ( 24x24cm ), it's the same color for my three jeans. I cut the diffrents parts of the jean ( button, label, jean pocket...), I need to 4 parts because when I analysis the jean for me there are 4 most important element so I create 4 differents forms in wood. After, I re assemble these parts withe the background. And then, I put my shapes on different parts. And to finish, I create networks. I imagine and I connect all the parts in them.