I don't really feel like it's too fast, honestly. It's not like I've learned anything crazy within the last year. I've just been trying out more art styles and developing my own.
My comic book style is about as well defined as I can make it with it still being distinctly "my style". I made the transition to painting rather smoothly and this marks my 4th ever painted illustration, so clearly I've had the skills all along, I just haven't used them as decidedly as I have here. Lol.