That drawing, while it has some Kirby-isms, isn't Kirby. Those legs...and feet. Just wrong. Where'd you run across this?
On my blog, from about six years ago, so I have no idea. If it was Kirby, might be an animation drawing from later on, which sometimes explains why something is wrong
But look at all that erasing... Jack never erased like that. But lots of kirbyism
True all dat...sometimes I just dunnae, but at the end, nice to see it all