A navy dress with broad straps has a shallow shaped upper edge. The bodice is fitted down to the waist; the unpatterned skirt gently widens below it and ends around the calves. White open-toe shoes with several straps contrast clearly with the darker dress. A small pale bag is only partly visible at one side. One arm is raised, and the upper face lies outside the picture.
The photograph is especially useful for deciding how much shoe contrast you want beneath a plain area. Compare white shoes with an existing darker pair on your own navy candidate. Keep the bag and jewellery unchanged at first. Then decide whether the pale accent should remain at the feet or move to a bag instead.
The partial bag view cannot establish its complete shape. Try your actual model with the things you intend to carry, holding it at the side and in front of the skirt. Add a view with both arms down. You can then assess the broad shoulder line, waist and flared outline together before choosing the complete combination.