When Redlining works for my students, I try to keep their stylistic choices in mind, even as I correct anatomy.
For those who don't know, Redlining is the process of drawing an informal sketch over another person's piece of art to point out and correct flaws, especially in anatomy. The sketch is usually in red, hence the name.
However, as I often correct posing, rather than drawing over the original sketch, I set them side by side.
In this piece I not only corrected the pose and anatomy, but corrected the misuse of bandages to bind [which can be very dangerous, bruising and even fracturing ribs, and often causing permanent scarring] into a small leather riding corset.
In this piece I did two redlines. The first one simply corrects the anatomical structure of the picture, but the second one shows what I personally would consider better poses for the idea the artist was trying to portray.
In this piece I did a rougher sketch, to leave the feature a tad more ambiguous to interpretation so the artist was free to more easily adapt it t their more 'anime/manga' like style.
In the Slender piece I had to correct posing and anatomy for the girl, but I also had to do a less anatomically correct form of 'correction' for Slender man. I corrected his pose, and did touch up the anatomy, but I elongated it to better match his normal description of being 'inhumanly long and slender of form'.
Admittedly it bothered me to sketch out something that looked so wrong, especially as a correction, but it had to be done.
In this final example piece which I will give a warning for now: It's slightly NSFW as it portrays light vaguely detailed nudity from behind. So if seeing a butt bothers you, clicking the link is a bad idea.
But in the final example piece, I corrected a tad more heavily away from the original style than I normally would, upon request of the artist. She had been looking to branch away from her more cartoonish style into something more befitting of realism.
Redlining is an important part of teaching a student how to proportion more accurately, and in my opinion, is really fun! It's like taking a piece the budding artist has done, and showing them how to fix it so it's more befitting of their original goal. For every redline I do, it feels like helping them achieve a little more of their artistic dream.