I really think the thought bubbles are funny, if I get it correct it's like he's showing his individualism in zombie form. The drawing does need work though. The layout for example: try moving the shirtless zombie out of the diagonal line. Also work on the hands, even cartoons need reference.
thanks for the comments. yeah its not that i can't take critisizm, it's just kinda lame to jump on my other work as well just because he doesn't like it too much, because i know it's not that bad even though it might not be tha good.
About my design