Barry Windsor-Smith’s pencils for a panel from Uncanny X-Men # 186 ‘Lifedeath’ that was deemed by Jim Shooter to be too risque for publication. Barry cut the panel out of the page and redrew it for publication.
I think these are what eventually became of the panels/concept? (I have no additional info like publication date or issue number, besides what OP has stated. I just have these saved as reaction images)
Jim Shooter felt that Barry’s original pencil drawing showed too much cleavage. I believe the panel came from page 2 of the story, so it would either be the second panel you posted, or the one I just posted. In all cases, it’s beautifully elegant work. As usual with Barry. And give it up for Terry Austin and Glynis Wein for inking and coloring the published work.