This green dress is probably too causal, but it has floral details on the sheer part

This website looks sketchy but you might want to risk it?

A shein dress

This gown comes in "emerald". Again, I do not know if the site is trustworthy

Esty: "jungle fairy" dress

Another seller is also selling the "jungle fairy" dress using the same photos, so it is likely mass-produced in China (I can find at least 6 different sellers using the same listing title and pictures)

JesusBridalOnlineUS (sketchy name): "Dark Green Prom Dress With Spaghetti Strap For Christmas,Fairy/Princess Prom Dress"

This seller actually looks very legit and there are reviews with pictures of this dress: Moss Green Floral Prom Dress 2022 Ball Gown Spaghetti Straps Long Evening Dress with Pockets

This seller accepts custom orders and you could ask them to make this dress, but in a darker shade of green

Here's a seller who stole the pictures of the exact dress you want and is selling knock-offs, if you really want to take a big gamble

As for the other dress

Amazon

Amazon

Etsy

Dresses without the one-shoulder look:

One option: shein

Another option: I do not know if this website is trustworthy

Etsy store with rave reviews

Another Etsy store