This is a very obvious observation, but I had cropped some of my photos for the header of this blog and was amazed at what a difference the cropping made.
Just a couple of examples.
I decided one day to take some pictures out our apartment window trying out the black and white setting.
I really like this picture in black and white because it captures the cold wintery feel of that day. For the header, I wanted to focus on the churches, sky and the odd clouds and/or steam coming from factories in the background. Losing the near buildings gives the picture a totally different feel.
In another picture, I decided I wanted to focus on the orange of the sunset.
Even though I intended to focus on the orange but cropping off the upper blue portion, I was surprised by how orange the result seems.