Nail on the head specifically with Gonzo. Those larger eyes look much better.
I think that's the problem... they're trying to get the look and the style down, but it really seems they're playing it too safe. Something tells me they're just not quite stylized enough. Some of their other toys got by on bare likeness. The Marvel and DC comic ones were easy. Just slap the costumes on a one size fits all frame and it's easily recognizable. Even some of the other Disney characters they had basically fell on the same frame. Even the Simpsons were very very stylized, but recognizable.
This one seems to want to do it both ways... stylize but keep the facial likenesses instantly recognizable. They do need some tweaks, and no doubt we'll see some more of them before the final product.
Still, I noticed they have Beavis and Butt-head as well as Phineas and Ferb plain vynal figures with bases... I'd like to see that down the line.