Awesome, some news. That's some excellent/amazing work on the clothing folds, swizzle. Also I'm starting to see a lot more personality in his face, although I think his hat needs to be a bit bigger and perhaps tilted? But most definitely experiment with hat sizes, because it would seem a better 10% bigger.
He has a hard hat in his lap in the comic, so I figured it would be okay. And I felt like he needed something yellow which makes him more recognizable as engineer, since the original has lots of yellow colors (hard hat, glove, kneepads) and this one almost none. Gave the buckle some more thought and I'll probably go for…
I suggest a darker color for the gloves, more like his hat. And maybe try another color for the bandana? The current color makes it blend too much into the shirt imo.