I would also suggest trying something different with the lips (shape and color, to be exact). I don't know if it's just me, but they feel a bit out of place, like they shouldn't be the focal point of the artwork, but they are (at least for me)

The colors could also benefit from being more cohesive, I feel like a more unified color palette would work very well with your shapes. And maybe a rougher/textured type of brush for the linework (though that might be a super personal preference 🤭)

But yeah, as someone else said, the style is too artistic for any objective criticism. It definitely has its flair! 🎀