This is something I wear for my internship, very sophisticated but casual. Jcrew Factory, Gap and Oldnavy have those sophisticated pieces that are cute and affordable!
Sweater here, Blouse(similar here or make your own here), Polka dot pants (similar here), Flats (here), Bag (here), Bangles (similar here, here).
Have any questions/comments, let me know in the comment section!
Thanks for the support! :)