To be honest, I don't see anything of substance in your comics. It's just another stick figure cartoon that any ordinary Joe could have drawn. Design characters man, not only would it make the comic more interesting, but it would add to the funny-factor, as actually characters have personality and can be developed upon. You don't even need recurring characters, just.. people (or animals/aliens/whatever floats your boat) of some kind with personality..

Just my 2¢, just passing on what I have learned from my dad who is a professional cartoonist.