Why the leaves of my trees looks white ?

Hiii! I imported the Fantasy Forest from unity asset store, however the forest is supposed to be looks like this (1st image attached), but it looks like this for me(2nd image attached). The color looks weird for mine. How can I do to make it better?

 

Are you using the built-in renderer? Could be several things.

Go to the lighting window [Window->Lighting] and click on the "environment" tab. Try changing the environment lighting settings. I think the default is the blue skybox, so it might make things bluish in your scene. Also check the fog. If you're using any shiny surfaces then Unity will use the same default skybox for reflections, so those will be blue too. Make sure that you have a baked reflection probe and then the reflections will be a better color.

Edit: also, if you have post-processing, make sure it's not interfering with your colors. I you don't have post processing then you should install that package so that you can get the most out of your visuals.