Uploading it like this because the ask reply won’t let me upload more than 1 picture D: But anyways I don’t know how accurate my tips will be but what I always do is try to imagine my drawing as a 3d sculpture instead of a 2d drawing. Just think to yourself “how would the shadows and highlights look on this if it was real”. Also when I first started drawing without lineart I thought all the shading needed to be soft. But you need to have a little hardness too. Look at my ugly old soft drawing and then look at it with some quick hard shading added on her skin, it looks so much better!