Typical of Restoration Court dress (1660s), the gown is made in a beautiful blue and gold silk brocade (other colour combinations available) with matching plain blue silks and satins and adornments of silk taffeta ribbon - very popular in the seventeenth century. An element of artistic licence was used with the representative shift sleeves (the undersleeve part), by using a silk rather than lawn or linen, but this seems appropriate to a wedding / court gown.
"Note of interest - in the seventeenth century men wore heels. The yellow and red mules were most likely mens' shoes. The yellow mules are from Italy and were made in the 18th century." --Sylvia Windhurst
Irregularly pleated linen collar, Northern Netherlands, c.1615-35 (via). “Early millstone ruffs were starched with regular pleats. This example, however, is looser and less tidy. It is of a type that was popular with young, fashionable men around 1615 to 1635. This is the only surviving pleated ruff in the world.” - Rijkmuseum