Don't worry, the ball is just a hologram.
It's been a while since I've drawn something, much less with actual detail. It's kinda weird how this is one of the very few things that turned out exactly how I imagined it, but I'm not quite satisfied with it. Is that weird?? Anyway, enjoy this entirely impractical robot doggy..
Link
Rickochet
Digging the texturing on the you did on the sand and the shading came out quite nice. Over all good stuff.