One important little detail for a vintage wedding photo is to pay attention to the pose and these two show us how.

The bride sits in a chair with her gown draped out like a hoop skirt. Her dress is strapless which is not exactly true vintage but the appliqued lace is. She has elbow length long gloves with the fingers cut out. Her updo bun hairstyle is classic with a tiara and veil attached to the back. She has side swept bangs and her style is straight is smooth.

The groom is standing next to her and he is wearing a dark tux with short jacket. He is posed with one hand resting inside his coat and has a very stiff posture. He has slicked back straight hair with a deliberate part.

Here is a photo showing the top view of a bride's updo that is full of rolls that make up the bun and a tiara sits in front of it. This can give you an idea of how to accomplish the above look.

This second option gives another alternative and a variation of it could be a possibility.

And another option for the back of the updo. This one is quite a bit more elaborate with many sections intertwined and buns and rolls abound.