Don't be afraid to roll pants, too. I'm pretty sure I could write a whole post on that. If they're too long, roll them. If they're cutting the look off at the ankle and you want to create more emphasis on their shoes, cuff them. I think the detail from her socks to her shoes is cute enough to highlight, and it looks whimsical to crop the bottoms with a new finish. But don't cuff them at the ankle - bring them up a bit higher, like capris.
Make sure it looks like you want the shirt to go with the dress by rolling the sleeves and ensuring the top collar of the dress is still a visible layer beneath the shirt. Otherwise, it may end up looking like you stuck the shirt over it as an afterthought, or for warmth.
Samantha's sitter in the afternoons has proclaimed this outfit to be her favorite.