It's fine for most kids I'm sure. But to the discerning eye it's all wrong. If Dave painted it you'd say "Oh, now I see how bad it was".
I've got a question for Plan9, and for SlamJim - though I invite anyone with a perspective to share - it's one of artistic approach.
What do you guys think is the best approach to packages like the Franken Berry, where the main graphic element is a mostly-flatly-rendered character?
Looking at similar cases in Old School 1, it seems that Dave took the approach to bring more dimension to the original mascot illustration.
With a standard package, where the graphic elements are just a flat logo and text, it works to bring rendered elements on top of it, as the package as a whole is rendered - so they aren't really fighting one another. In those cases, fully rendered characters are often introduced on top of the package, like on CRUST and CREEP, for instance.
But where the character is the element, is bringing more dimension to the original mascot the only workable way to go?