i am sure this is a dumb questions but damn that forest background looks like his hand, if he didn't do it they sure ripped him off
"They're by an artist named Grik, who is in the OG OC ska band GOGO13 with Yo Gabba Gabba! character designer Parker Jacobs. Who is co-creator Christian Jacobs' brother. GOGO13 made the new anthem around our house: "Pick it up!" for the show, too. And from the look of his non-shoe artwork, Grik did the animation." No more mess, no more mess, no more mess..
Parker Jacobs did some pretty sweet gig posters, you can see some people that look like Yo Gabba Gabba characters from several years ago. Like this one... Here's a link to all of his gig posters stuff... http://www.gigposters.com/designer/5067 ... acobs.html
The Aquabats(Christian Jacobs is lead singer aka Bat Commander) had a bunch of villains that looked very similar to Yo Gabba Gabba characters. Brobee the Brocolli Bee was pretty much Brobee, and Cyclopsis was pretty much Muno. They get a bunch of bands on the show because they're all in bands themselves.