Composition

One of my major problems is centering things

I am on a mission to have better composition in my photos. Here is a photo I took of my sister. I was trying to use the rule of thirds and trying not to put her in dead center. Which I thought looked really nice.



But looking at this photo after downloading it she was to much centered for the rule of thirds . I then cropped it to this.


Which I think is more appealing.