In 2000 when I got back into photography I thought it was all about content, what was in the frame. Focus, depth of field, white balance, all the technical stuff.
I have learned that while the technical is important, the composition of the main subject and the background had a lot of importance in the image.
Once I started to figure out the composition stuff, then impact and emotion became important.
Now, I am realizing that since photography is literally drawing with light, it is all about the light. Quality, quantity, direction, color all to create emotion and impact.
The journey continues.