So, like others here, I like both options, although I like each for different reasons. Your color work in either is good, and you have good understanding of contrast/light and dark to make it not seem flat no matter what you do. I concur with the earlier opinion that more/bright colors will probably do better on Tapas, but I also understand the appeal of a well-done limited color palette. That said, I ALSO also understand that using the same colors page after page after page gets really old really fast.
For my own work, I'm trying to replicate natural colors as closely as possible (down to color picking from actual photos if I can), so I have sort of the opposite of a limited palette... at least in theory. Thing that I've noticed happening is that my colors DO sort of limit themselves... based on the light in a scene. Deep sunset looks different from morning, which looks different from night colors, and each one instills a different, somewhat limited palette.
So I suggest a middle ground: As scenes change, especially if the lighting/atmosphere/vibe in a scene changes, give each scene its own partially restricted palette. It'll be more interesting for you as the artist to do, since the colors will change once in a while, it'll still have that limited palette vibe, AND occasional color changes will help the readers mentally transition from scene to scene, too.