There's a discussion section in my coloring course in which I provide feedback and critiques for anyone that requests it, and I feel like it makes me a better colorist too to have to explain myself! I have to figure out how to verbalize why something doesn't "look right."
In this YouTube video, I go over a few samples to show how sometimes slight tweaks can really make a big different in how a page reads. I'm already getting requests to do another, so feel free to send in your sequential examples, and maybe I'll do yours in an upcoming video!