Guardians of the Galaxy was done by Jim Valentino, with cover inks by Erik Larsen.  It's been said that Larsen also has done the inks to #4 as well, but I haven't seen it, so... I dunno.  The inside of this issue really sucks, and the cover isn't even that good, but.... it's Erik!  Oh well, at least when I look at it, I can always make fun of that weird looking guy on the far right.  What's up with that head???