I’m pretty sure I’ve seen that skirt on the cover of a Sesame Street DVD. On Burt.
Blouse: Thrifted (similar here)
Tennis skirt: Vintage Lacoste
Shoes: Thrifted (similar here)
Leather clutch: Rallph
Earrings: Susan Hanover Designs (gift from me to you:enter CAMI for 40% off purchase!)
Sunnies: House of Harlow