Hi there I am from I hope what follow will be usefull to you !First of all I really like the pose and the line art, but I think you should maybe try to hide it. Foor exemple I can still see the line art in some part and it looks a little bit weird.I think you should hide it when it doesn't shows the seperation between two obect, in the middle dress being able to show the lines is weird. If they are there to show the dress overlapping you should maybe try to show the folds with light and shading instead of lines.Also you should try to use another light sourcen it could help showing the dress flows and add to your shading. For exemple a light of another color coming from another direction would help. In the same way try to keep the same "soft" lighting on the whole piece. In some part the shadows are really hard edge.Also you should maybe try to use line weight when the lines can be seen.To conclude I think the shading is really cool but would greatly improve if you took more time to make the lines and the shading match.If you have any question I will be happy to answer you.Great piece! Keep working and have a nice day.