I love the profile photo and Canva for original art. I hope you tipped that $5 artist - or at least gave him/her a good review. I've had drawings done of photos and yours is better, more personable than what I got.
Funny I have the opposite issue with comments. I love reading on Medium and my ratio of time reading to writing is..... unsure, but probably too heavy on reading. It's unusual for me to see an article that I really like and not have a comment that I want to add. It doesn't have to be praise. You can disagree or ask a follow-up question. I think a thought-provoking comment can lead more readers to you also.