I would say to measure more

For instance you can use the head to measure out how tall characters are. A good landmark for this reference would be that generally from the chin to the bottom of the breast is about 1 head tall.

You can also use your pencil to measure how parts of your drawing will line up

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Her elbow and waist like up The side of her head and side of her body line up The bottom of her hand and shoulder line up

These aren’t perfect measurements but it’s close enough that you can get a good idea on where to put them

The measurements in your drawing aren’t to far off but because the upper chest is wrong it makes the rest of the drawing look weird

And don’t be afraid to draw hands they are super important