This is the picture he drew of the characters he found in the Lego Batman video game, a picture that appeared in the letter column of this week's Batman: The Brave and the Bold #5. You can tell Batman is the hero because he has the biggest head.
I'm not sure how old Mr. Haggerty is, but he doesn't seem to have any problem drawing feet, which means he's already got at least one skill that at least one recent Batman artist has lacked. He also draws a darling Catwoman; that's her swinging from the N, right? Looking all like an angry little panda person?
According to his letter to Johnny DC (in which asks where Alfred is at), Haggerty has even made his own comic, and it's called Mancat.
Johnny DC, you should totally publish Mancat; I really wanna see it!