Alot of the more-artsy people won't comment on this, because it's actually decent.
Regardless of the fact that the style's very simple, you managed to play it off nicely. Good job.
Also, try to move the main character's attitude away from Billy's.
Oh hey wait. I commented, and as an artsy person I admit, it was good.
And absolutely nothing like Billy and Mandy. God were we off. Glad I didn't jump in on that, I just sort of laughed.
I'm going to say that Yoshi has matured and perhaps his artistic skills can be accepted in this community. The story was a little lacking, but it had it's gags. I feel that the next issued should be good. Perhaps ink it digitally so you can add color. Plus, if you have a program like photo shop or paint shop pro, you can get rid of those messy pencil lines.