Each of these requires tweaking, lengthen the skirt length and lengthen the ruffle/ flounce, drafting a square neck, finishing off the neckline, changing the sleeve etc.. but it should get you closer.

Drafting a square neck https://www.contouraffair.com/2021/07/how-to-sewing-square-neckline.html?m=1

https://m.youtube.com/watch?v=UqX8g82jKCU

https://blog.closetcorepatterns.com/introducing-the-pauline-dress/

Vogue V8948

Vogue v9372

BUTTERICK b5985 https://www.amazon.com/BUTTERICK-B5985-MISSES-DRESSES-PATTERN/dp/B00HSXQKSI

Burda https://www.burdastyle.com/flounce-dress-09-2014.html

https://www.burdastyle.com/fit-and-flounce-jersey-dress-11-2014.html