I'd honestly be surprised if you didn't notice a ton of flaws in every piece i do. I know i see them in every drawing i finish. I just try and make a note to work on them in the next piece. thank you for your comment, your more than welcome to critique my work. you might notice something i'm overlooking
I feel that we the people who comment on ther works, that we're afraid to critique, even if our intention is all positive and constructive, because we fear that such obrervations will be taken in a negative way. I actually believe many people don't even write anything at all for that reason.
I felt a little bit of that fear when I commented, I must admit, and I want to leave perfectly clear that it is not my intention to do any critique with a bad intention at all, so I mentioned first that the overall art is great, I'm also not saying that the 'flaws' is the first thing I notice in a drawing, it wouldn't be fair either seeing only the bad things nor just saying 'wow a perfect drawing I love it all!' 'cause it wouldn't be true either: equilibrium.
That being (more or less) clear, I admire your technique, compositions, control over the female body representation, adn what I love the most is how you can draw faces and facial expressions. Now, on the other side, this drawing in particular I notice that her right (our left) arm is too short. Her right shoulder is too big or muscular, I understand Black Cat is athletic but I believe the shoulder is more developed than usual. One final thing I see is that something in her head, in the zone of her 'visible' ear is not right, makes her hear look smaller or as if a part of her cranium is missing. An optional thing could be making her ear a bit visible, because the parts that the heair is not covering should show part of her ear.
That's it, thanks again for replying and I am sure you always try to improve like you say, it is noticeable with each piece because one isn't born making this quality of art, keep it coming!