Surely all fans of the Claremont/Byrne X-Men run remember this panel from the very last page of Uncanny X-Men #132 (1980)!
After being dumped in the sewers, Wolverine vowed to open up a can of whup-ass on the Hellfire Club, which he did in the next issue. It was an exciting image, with the shadows of the sewer grate above shining down on Wolvy's costume.
John Byrne re-interpreted this moment for an illustration that appeared in his X-Men portfolio in 1993. This version features a lot more muck and sewer gunk that surrounds Wolverine--a truly awful place to be!
Here's the pen & ink version of this illustration. I imagine that some art collectors have commissioned similar pieces? If so, please share them in the comments below. Nuff Said!