I just started my first comic yesterday. It's called "Don't Be A Hero": https://tapastic.com/series/Dont-Be-A-Hero
As my synopsis says: "It’s Science vs. Superheroes! In the superhero-dominated Red Dusk City, Gemini and her sister Iris, aspired to use their scientific prowess to better the world…until a certain hero used Iris’ own invention to vaporize her. Now with her sister’s device Valhalla, in hand, Gemini aims to destroy, vaporize and absorb the powers of the city’s official superhero league - the BFFs. Fighting fire with fire and backed up by hatred fuelled by the death of her sister, our scientifically enhanced heroine will teach the Bravest Friends Forever the most important lesson of all: Don’t Be A Hero".
I've only got the first page up so far, and I'm currently working on the second. After my few page prologue though, I do plan on digitally working on the 30 pages that I've already drawn of my first chapter. So I really am much farther than I seem. I would have preferred to work on my whole prologue first before I made an account, so I could have posted the whole thing in one go, but I really wanted to make sure I had the sizing dimensions right on my first page before I started making more of them.
Anyway, if you're looking for a good action series with plenty of character, humour, and interesting powers / fight scenes, you've come to the right place!