I'm happy with my art and writing! Like every other artist in the universe I hit points where I feel like "THIS IS IT!!!!! I'm getting worse now, I've used up all my talent and now its all gone!!! I'm becoming imperceptibly more mediocre with every page!!!!" but I'm still really proud of the comic overall!
I think I prefer "proud of" to "satisfied with." Like, even the very beginning of my comic, I look back and think "wow heavens I could've done that So Much Better if I knew then the things I know now" but I still feel like, at the time, I did a real good job, and I'm proud of what I did. I think, it's not like I look at my work and go "yup, this is good, I'm content, this is where I wanna be," it's more of a continual process of "I think I'm doing pretty well so far!"
Right now I'm trying to improve by spending more time on planning -- both in the sense of art and writing. Taking more time to think through a scene and plan out a chapter and design a space before I get there. Planning ahead more with my writing is helping me to see just how many different threads I'm juggling at once, and to try not to forget important ideas and have to cram them in right before they're needed. I'm also trying to pay more attention to colour, and think about making pages aesthetically striking and distinct, rather than just "convincingly in the place/time of day that they're meant to be."
Writing, I think? It's tough, because if art wasn't extremely important to me I sure wouldn't spend 15 hours on a page, but at the same time, I'd rather readers tell me I've messed up some anatomy than have readers admit that an emotional moment didn't land for them.
Though slotting "story" as a part of writing makes this tough to answer too, because story is 100% the most important thing to me, but so many art elements matter to me because they're part of story-telling -- expressions that read well, a sense of space that doesn't become confusing as characters move through the environment, the design of an area that makes the world less generic, the pacing that comes from the composition of a page, the mood that comes from the colouring of a scene. So I'm not sure. I can say "story matters most" with certainty, but that could mean all kinds of things.