I pretty much agree with not_Scyess' assessment.
This comic:
[Click to view comic: 'Cannibal clowns, volume 1']
(comic #133999 -- I think that's Fibonacci's brother-in-law's sequence or something) would be better if the last sentence of the second panel and the entire third panel were tossed out the window.
I think you have a decent sense of what's funny, except that it sometimes gets shouted down because you also seem to think that total randomness is funny, a viewpoint with which I have to disagree. In Leg Thief, posted above, what's funny to me is not that he's flossing farm animals, but that he can't remember which farm animal he's supposed to be flossing. That's probably my favorite of yours so far.
All in all, I've seen much worse. Keep trying.
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The what mentioned above is total fiction. Please don't take it seriously!