Super cute character. Great expressive eyes you achieved in your pixel art. Might I suggest you try playing the animation back more slowly to make it even more effective?
Thank you so much for your comment and for your tip! Do you mean something like this?
Absolutely! Now it feels more like an idle animation. You could even test a bit less movement, making it more subtle. It’s probably a stylistic preference on my part, but I feel your character is moving a lot for an idle - of course, I don’t know what the character did before stopping - they could be recovering from running and fighting, thus the deep breathing to recover .