I don't like Pat Lee's art much, but as far as the chunky TF's go I blame the G1 toon for that, ok in G1 they weren't that chunky, but they were drawn pretty ilogicaly, they were never drawn with obvious joints, always as rectangular shapes connecting, and when they move they get squezzed and stretched as if TF's were made of rubber.

So while the chunky is over the top it's not something that I can fault as bad drawing on Pat Lees part.

His faces on the other hand! What's up with that urgh! All his characters look like juveniles even the battle hardened old men.