Marvel Comics is going retro for the month of February as various titles will feature Phil Noto variant covers.
Below you can check out a gallery of the work.
We see that Noto was inspired by the Dan Abnett and Andy Lanning 2008 Guardians of the Galaxy comic book (that Marvel cancelled) for the Rocket Raccoon cover.
Marvel also keeps it PC with the Cap and Thor covers.
Here's the Rocket pic for reference from War of Kings #3: