>>53776183I think it’s just because Dudunsparce is far more segmented
Dunsparce has a little blob for a body that looks far more natural: it’s got a (very) small neck, its body tapers into its tail (which also tapers into the body), and everything is pretty connected. Really the only “tacked on” thing is the wings, which are a bit disconnected from everything else and I wish they had a bit more of a visible attachment to the torso.
Dudunsparce, on the other hand, is very very obviously segmented into pieces. The way its model is made makes the duplicating of torsos (save for the pattern on top) very very obvious, considering how they’re all the exact same size (and only the third piece changes in any significant way)- they all look like they were just tacked onto each other. Nothing segues into anything else.
The neck is still kind of there, just barely, but nothing else works. The first torso just cuts off into the second, which cuts off into the third. And since the tail’s connecting piece now has a lot more visual emphasis placed on it due to being a segue between two very bulbous parts of the design (as opposed to a small connecting piece from one larger part of the body to a smaller part), it sticks out way more and makes the tail look tacked-on too.
It doesn’t help that the wings move up to the part right before each torso cuts off, giving the design very visible cut-off points because of how the wings highlight where they stem from.
The extra blue bit at the top of the tail is also thrown on the end without much thought, looking more like it was a separate piece of carapace that was glued onto a shaved-down normal Dunsparce tail that got swollen a little bit.
All the segmenting makes Dudunsparce look far more awkward and immobile than Dunsparce ever did, and a lot more toy-like too. I can see it as one of those stress toys with wiggly parts way easier than I can see it as a living, breathing, snake-thing.