My daughters (5, 2.5) were flower girls in my sisters wedding and their dresses still fit and are so cute. I’m trying to think it I could make them work for an early to mid fall photo shoot (in New England).

This is the dress they have. What would you add to make t fall appropriate? I’m vaguely thinking cardigan and tights but not sure on colors or thickness...and what shoes?
suggestions or inspiration photos are appreciated!! Or tell me if it’s just going to look like I put them in a summer dress in the fall.

Link to the dress: