One is full, another one is cut out. I want to choose one to use, but I'm confused. please help me to choose a better one. Thank you very much!
Personally, I prefer number 1 as it feels like the subject is more clearly defined.
Yep - I agree with Stan. The first one (the cropped image) looks the best to me. However, it really depends on what you are trying to show with the image. Did you have a specific "message" in mind? For instance, if you wanted to show that all the individual branches look very much alike, then the second shot that gives a wider view conveys that message better. On the other hand, if your intent was to show more detail of an individual branch, then the cropped image is more successful.
There are no rules for good photographs, there are only good photographs. -Ansel Adams