https://1.bp.blogspot.com/-bFqjWNjJF3Y/V...verse-19821.jpgThe Marvel characters as I loved them best, in this 1982 promotional poster for SQ Productions, as advertised in virtually all the Nov 1982 titles for Marvel.
I was one of the lucky few who got one in the mail right before SQ Productions went out of business.
To clarify for you, this was Michael Golden pencils and inks, and I think at the absolute peak of his talent.
If you don't already have them, check out these Golden stories from that period:
AVENGERS ANNUAL 10 (1981)
DR STRANGE 46 (5 pages, Golden/Russell) and 55 (22 pages, and cover)
MARVEL FANFARE 1 and 2, and his last great work, issue 47.
MICRONAUTS 1-12
These are stories where Golden draws many of the same characters in similarly gorgeous linestyle and color.
The character you mention is Captain Universe as you say, and Golden drew him in Micronauts 8, which as I recall was his origin story.
And while it's not Byrne/Austin, Golden definitely draws the X-Men in a way that's very Byrne-esque, with Wolverine's costume as the one Byrne gave Wolv in the last few X-men issues. That definitely dates this in a particular window of time, Marvel-wise.
Golden did a similar really nice cover for the 1982 X-MEN COMPANION vol 1. With X-men fighting some Sentinels, that's also very poster-worthy. These were fantagraphics books with extensive interviews of Byrne, Claremont, Austin, Louise Jones[-Simonson], Roy Thomas, Neal Adams, etc. Basically all the people who shaped the old and new X-men to that point. Especially interesting was Claremont's behind the scenes look at at the Dark Phoenix storyline, and what might have been if Shooter hadn't mandated as ed-in-chief that she had to die.
https://www.comicartfans.com/gallerypiece.asp?piece=168720(this is the back cover, without the logo, and even more poster-worthy.)
Issue 2 had a Gil Kane cover.
