Plants won't build light properly

https://ibb.co/XL1Lq3N

I can’t get the plants to build light correctly in this scene. (See link above). They come out very bright and bleached out it. Does anyone know whats causing it? Is it something to do with the opacity or making them a two sided material? I bought these plants from here :

Any help would be great!

It is hard to judge from the image you provided. There isn’t much of a shadow on the floor. Might just be too bright. Are you using RTX?