You should link in the author comments section all the older versions of RoboDave from 2014 and 2015, I looked through your art to find them and it's really a nice evolution since the first version from back in '14.
Really neat illustration with far more details than all the previous ones, only things I can really think of that I think you might've missed was getting rid of Carl running away (you had that be a thing in the two previous ones) but I guess he's be used to this by now, wouldn't he? And the sky background looking kinda empty aside from a few clouds, maybe some moon or a rising sun would've been neat but Potatoman and the chopper did a fine job at filling-up space.
Still, really cool. Have you thought about selling some of these as posters?