Some things I'd recommend you to work on:
* Nose is almost a straight line down. In that kind of 3/4 angle, it should always be more diagonal. In this specific case, it'd be a straight line down, perpendicular to the paper, so the tip of the nose would be more aligned with the right eye. Don't be afraid to start drawing this line closer to the eyebrow, this kind of eyebrow-nose bridge curve is very noticeable from this angle
* The mouth might be too small, but this could more easily be "taste". In my opinion, increasing it by 20% makes it more attractive (resized with Mspaint lol) - Also, the middle of the lip should ideally be aligned with the "middle line" of the face
* The left eye could be moved slightly closer to the right and a thicker lash could work well on its rightmost part, the line is too thin there
* Still on the eye, one thing that we often ignore but that can make a difference is eyelid lines. The doesn't even need to be thick, long or uninterrupted, it just needs to "insinuate" the eyeball shape behind the skin and under the eyebrow
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Alternative nose, slightly changed mouth position (+up, +right)
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Whenever you feel like that, it's important to do some self evaluation and criticism. Talk to yourself or an imaginary friend what do you think looks off, what you actually liked and what you should probably work on. When "Something looks off" becomes "This part is in the wrong place, I need to move it XYZ direction a bit", you're on the right track