This is a topic I always have a problem with. I am right-handed but left-eyed. I have composed images where the main subject is on the left side, knowing the rule about reading right to left. It feels comfortable for me, but also I compose the other way too. I guess as long as the subject doesn't look like it is leaving the photo on me, I compose both ways.
I also read magazines from back to front then front to back.
One last thing...I paint watercolors which puts me in my left brain.
I'm getting really confused now