Please help me find dresses similar

hi :) please help me find dresses similar to the styles attached that are still affordable < 500 AUD

• floral applique
• couture beadwork
• llusion corset
• draped hips
• fitted mermaid shape

i found these styles on a few scam/non legit boutiques and the original designers supposedly have discontineud them and rental sites are renting this dress for almost 600 dollars so please help me out!

https://preview.redd.it/wuaynsgbnebh1.png?width=1088&format=png&auto=webp&s=bce16317c4d6bb31e8e1f0fe054a368ebfdd28c6

https://preview.redd.it/uzetzeafnebh1.png?width=712&format=png&auto=webp&s=44bf1b1f0ce7047a86201498d83479c795fc8bbd