I always think that sheer flouncy summer dresses are great for upskirt work because they allow plenty of light to penetrate so we get a perfect view of the goodies on show__Woof-woof !!
Whilst we're on the subject of Penetration Levels ,---- No, on reflection, i'll leave that for another discussion!

In an earlier life as a shop window dresser, i was always aware of the importance of presentation.

Her presentation in pic.2 is immaculate. It would certainly encourage me to buy a wardrobe full of her knickers__!!