What puzzles me is that most of the articles I've written for this site are working quite well in terms of CTR, and I never did A/B testing for them. Right now

What puzzles me is that most of the articles I've written for this site are working quite well in terms of CTR, and I never did A/B testing for them. Right now I have two images on my home page linking to my lessons, one is a beach and the other is a crowded live concert (they're relevant to the lessons). 20% of the 1% who clicked on the beach image have spent some time learning the song, whereas my crowded venue image has about 0% CTR. Perhaps I could find a better image for the 2nd lesson, sure, but if 6 people are interested in the 1st lesson when it's free, how many will want to buy it? I feel I'm losing my time. PS: Would you want to help me by doing some consulting for me? I really need somebody to see if I'm doing something stupid.