Question

what is the guided composition

Answer 1

So I’ve just told you that there are no hard and fast rules when it comes to composition and then the first thing I write about is the ‘rule’ of thirds. In my defence, I didn’t come up with the name. The rule of thirds is very simple. You divide the frame into 9 equal rectangles, 3 across and 3 down as illustrated below. Many camera manufacturers have actually included the capability to display this grid in live view mode. Check your camera’s manual to see how to turn on this feature.
The idea is to place the important element(s) of the scene along one or more of the lines or where the lines intersect. We have a natural tendency to want to place the main subject in the middle. Placing it off centre using the rule of thirds will more often than not lead to a more attractive composition.
In this photo, I’ve placed the horizon roughly along the bottom third of the frame and the biggest and closest trees along the line to the right. The photo wouldn’t have the same impact if the larger trees had been placed in the centre of the frame.
In this photo of the Old Town Square in Prague, I’ve placed the horizon along the top third of the frame. Most of the buildings sit in the middle third and the square itself occupies the bottom third of the frame. The spires of the church are placed near horizontal line to the right of the frame.