Ahhh I know I'm a bit late on this, but I only saw the critique request now.
I have a hard time critiquing on style because everyone has different preferences, and I can't bring myself to critique based on preference, especially when it comes to to exaggerated styles such as SD or chibi. If ever I see someone whose art I don't care for due to my personal tastes, I'd rather not tell them that for fear that they may misinterpret my opinion as "I find this is objectively bad," which can be damaging without intending it to be.
What I can say is... if you're unhappy with your chibi style, try to think about how you came upon it. Trying to start straight up with a style without studying really boring fundamentals can result in small, casual errors that may compound over time and create an uncanny valley effect, especially when dealing with exaggerated facial features. One way to test the fidelity of a style would be to take a picture of a character, drop the opacity a bit, and then try to draw what you'd imagine their skull structure to be overtop their existing features.... or what their skeleton would look like, if it's a full-body thing you're worried about. Sometimes that can point to inconsistencies caused by perspective or proportion errors, and can clue you in to ways to improve on shapes, silhouettes, and gestures.
In terms of giving more blanket advice... basically, what
@Razleth said: the best way to learn is to study from life and
then stylize. I believe I linked you a thing about it once in regards to you being worried about having to look up references to draw a bathtub, haha. Though given it's your chibi style you have issue with and not your more 'serious' one, that might be less helpful... in which case, I'd say to look for chibi styles you DO like and, well, just copy a bunch of them closely in practice until you can internalize what about those styles you enjoy and find visually appealing! There is no shame in copying and referencing so long as you don't crutch too much on said copying directly, and acknowledge that you're copying and referencing as part of the learning process on the way towards finding your own style you're happy with!