Hmm well looking through a few things, its difficult to separate flaws from style elements. For instance someone might say that your lines are messy, but I would consider the same lines perfect because they're loose and airy.

I would say that your work is perfect, the only thing i would suggest is trying more body types and morphologies (not just upright bipeds)

I agree with Misskin, at least on first look, it's hard to know exactly what to critique. And critique in and of itself can be a bit of a behemoth. And something that you have to sort through yourself as you go. For instance, such as your lines, some may tell you to make them cleaner. But, some elements of critique are based off of that person's personal likes and opinions. And it's up to you whether you heed the judgement or not. It's worth a try, but not something you should feel outright obligated to do.

But, just as I need to, I again agree with Misskin. More body types and morphologies. C: Because bipeds are awesome, but drawing some quadrapeds and the like is good practice too. So I guess the over all critique is variety and variance. Not something intrinsic to your art.