It's fine, it just looks like it's been painted rather than cel shaded :) And this style probably works a lot better than realism as anime proportions are actually mildly terrifying when drawn/coloured realistically XD
Have you previously done an explanatory post of how you colour? If you haven't I would love to read one if you're willing to share/write one.

Hahaha mildly terrifying. I agree! XD
This was my fist attempt of grayscale to colour. I might have explained better than the rest of my post.
https://peakd.com/hive-174301/@djynn/colourising-the-grayscale-drawing-link-
OHH I understand what you're doing now :) Thanks!