For these images I gave DALL-E 2 the following detailed prompt:
"Alpine summer meadow filled with flowers. Beautiful woman dressed all in white clutches handpicked bouquet as she walks slowly in the background. Light mist floats above meadow as dawn sky behind high mountains turns pink. Photorealistic."
I thought these images were among the most successful I obtained with DALL-E 2, perhaps because my instructions were more detailed than I usually provide.