A very adorable look (and surprising for autumn/ winter), but this orange shift - late 60s inspired - looks great on Gwyneth Paltrow. I love the simple cut and bracelet length sleeves for coverage. Here are some vintage (an affordable) similar finds.
60s Peach Button Front Dress by Veramode -$37
Vintage Coral Shift by olderthanyouare - $20
Joan Holloway ribbon Back Dress by ampeefyed - $68
And shoes to complete the look:
Leather and Wood Strappy Platforms by sugarshackvintage - $35
Suede Platform Sandals by SecondWindVintage - $34
Platform shoes in tan leather by AnastasiasCloset - $52