Ok...
Well, the drawing style needs an additional tweak - try zooming in more to give you a greater degree of control over the outcome of the image. When you zoom back out, big lines will look smaller and will have given greater attention to the detail.
I think that it's a little weak on the plot, with the 'father figure' being able to throw something 651Km I think it bounced and pitched (rolled end to end) more than it needed, as the friction would have killed the momentum long before.
I'm not entirely sure about the arm & Hammer reference, but to keep things in perspective, it just seemed unnecessary to me.
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