Yeah, it looks perfectly good, but if you want to call it *true* pixelart it should be cleaned up at the pixel level.
Not that calling it pixelart is essential at all, I think it's a perfectly coherent and good looking animation and only pixel fetishists like us would care about true pixel artistry :p....and I dont think anyone would blame you for moving away from pixels, even here :p
I even enjoy the hi-res version. zoomed in pixelart that gets animated with bones like Spine being rotated looks great as long as the art you're rotating doesnt have abundant 45º lines or jaggies, it tends to look a lot better when it's as close to a vector image as possible. I'd totally even add some slight mesh deformation and maybe make those legs flail around like noodles if I were you :p
Incidentally, grid based vectors which are naturally quite pixelly like those in
Ridiculous Fishing. Would be a pretty cool thing to bone-animate in Spine as well :p
I use Spine and I've been considering using paperdoll animation to rough things out in pixels, care to share what settings you used to export these? I've never tried and I imagine it wouldnt be terribly difficult to find out but since you've already done it I figure I might just ask.