The artist is Boo and s/he's done TF art before for some of the TF Animated comics. His/her art style is okay (but not fantastic) for Animated, since it's quite cartoonish, but just doesn't suit the 'Neo-G1' aesthetics of HoD. Gah.

And being a web artist is no excuse for inconsistencies in one's own style. There's greater artistic consistency in Penny Arcade, Shortpacked and Homestar Runner!