Detective Comics #620 (Late August, 1990) was released right in the middle of a terrific era for the title. I was a huge fan of Breyfogle's artwork and it was one of my 'go to' titles during the last years of high school. Breyfogle was also a very inventive cover artists, playing around with layouts and design. This isn't his best work, but it is certainly far from bad. I do like the way his signature appeals to be nothing more than another crease in the cowl.
The second iteration of What If? never quite lived up to the quality of its predecessor. That said, I think the cover to What If #50 (June, 1993) is an appropriate cover design for the story, focusing on the inherent creepiness of an admantium skeletal structure. I don't know much about Armando Gil, but he seems to be very capable of delivering the kind of covers Marvel was known for in the early 90s. That's called damning with faint praise, kids.
Let's finish up with a cool one. The cover to Legion of Super-Heroes #47 (September, 1993) is pencilled by the great Stuart Immonen. His Skelegionnaires have been given a real zombie vibe. I love their posture. I also love the fact that the Invisible Kid's headband stayed on. Is that big skeleton Blok? Didn't he have a costume during this era?