There was a magazine sized issue part of the Marvel Super Special run and an oversized giant edition.
http://www.ebay.com/itm/Vinatge-Marvel-Super-Special-Magazine-The-Empire-Strikes-Back-Comic-Adapt-/272839730037
http://www.ebay.com/itm/MARVEL-SPECIAL-EDITION-2-Star-Wars-The-EMPIRE-STRIKES-BACK-Oversize-100-Pages-/132322596548
Can’t recall what version of Yoda appeared in them though. I probably had the oversized edition but those things were hard to store with one’s regular sized comics.I have the Norwegian version of that edition, and Yoda looks more or less normal in it. He’s still smaller than in the movie, but his face looks like the proper final design.
I’ve read (and own) several versions of Marvel’s ESB adaptation and I’ve only seen two versions. In both he’s too small, and in the second Williamson mostly just re-drew Yoda’s face/head.
https://static.comicvine.com/uploads/original/11124/111247379/4753904-dsc00139.jpg
The gradient shading in those pics! A great example of how “realistic” Special Editionist re-coloring of vintage comics has infected the modern comic book industry. Not even an inset illustration in a book can go without “improvement”.