I think some of them are a bit dorky, but I do really like his alternate outfits that are shown in promo materials (he only wears his coveralls in canon). He's rarely drawn in them, which is a bit of a bummer but I do like his regular outfit a lot too. My favorite is the one in the first pic (and it's coincidentally one of my favorite pics of him in general).
Usually he has his coveralls tied around his waist, so seeing him wearing it properly is cool. I really like his white coveralls, too. Pictures of him with just his black shirt are fairly rare, but those pictures are great and feel pretty intimate.
