4 pictures for CC

[KmH]

Shoot a lot of water falls pictures during my trip in china. Here are a few of my favorites. C&C are appreciated.
In another thread, some experienced members talk about CPL. I bought a 50mm f1.4G before the trip and should have spend little bit extra on a CPL.
None of them are pp. I used spot metering for the shots. #4 was handheld.

#1 The tree in the background are washed out.
35mm, f8, 1/60s, iso200.

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Used at the wrong time of day a CPL can cause more problems than it solves. Pro landscape shooters are inside, editing images and sipping adult beverages in the middle of the day, prefering to reserve their shooting time for when the Sun is less than 30° above the horizon.
A large part of your issues with these shots were caused by the time of day. I was also wondering how far you were from a major city (air pollution).

 

[RichardsTPF]

Used at the wrong time of day a CPL can cause more problems than it solves.

Does CPL help reduce the reflected light? What problem it could cause and what shall I be aware of?

I don't think it is the air pollution. This valley surrounded by mountains is about 416km away from major city. There was heavy fog and cloud in the morning.
This picture was took at noon. I was in a tourist group, didn't have much option for time. I will go back there by myself, and stay for couple days in the next few years.

Looks like you have sharpen the image. It's my monitor or not, it looks white.