Wolf and Ape look fantastic. Rex still looks like a plastic toy. Too thick and round, and the limbs jut out too much from the body. It looks like an inflatable balloon a bit. You hit the jackpot with the Yutyrannus Model, so similar, but more muscular proportions for the rex would be great. Another great comparison would be animations. The Yuty has fantastic animations with the hips moving inside the body underneath the skin, while the rex looks like a toy with its joints turning, and the tail is too stiff. Most of the older dinos have this issue with animations. Don't care about feathers or no feathers. I understand that you want the classic famous dinos to look like the more classic representations of themselves (JP), and that's fine. Winged Utahraptors would be great though.
Plesi is absolutely terrible. Head is a watermelon with a face painted onto it and spikes taped to it. They need that more eel-like head with the longer lower jaw, and probably shorter teeth.
Argents have horrible animations.
I know the spino is finally getting the scales removed from its teeth. Hopefully.
Piranha also need it.
Overall though, it is more important that the older dinos get a stat and ability pass as well. I don't see reason to use any small mount other than a ravager at this point because it is about as fast as a wolf, has as much carry weight as a rex, and a raw resource weight reduction making it more efficient than a paracer while having sabertooth level strength. The raptor is supposed to be the fastest small mount, beating the saber, but it's pretty trash by comparison. Scorpions are the worst taming mount and the worst torpor pet for pvp because they can't avoid getting beaten to death with their speed and can't tank it either, or catch anything moving. When they got 5% MS per level it was almost bearable, but the frog, horse or a mantis with clubs completely invalidate it. also spoiled meat tames need something to allow better effectiveness.
Araneo probably need a remodel and ability pass more than any creature in the game. I've always thought they were the worst model. Also they need torpor scaling instead of the flat 10. And as others have said, please give arthropod breeding. Most of the arthropods we have hatch as nymphs instead of larvae, so you don't need to worry about making new models or anything. they'll work fine as pale cream colored versions of the adults or even just miniature adults. The only exceptions would be dragonflies, ants, bees, moths, and dung beetles. Centipedes, scorpions, spiders, and mantids, all hatch nymphs. At least give us genders for mate boost. And make it a 50/50 instead of a default to male like you did with scorpions, because that would make my batches of spiders a gigantic waste as it did with my tribe's 20 scorpions we had before the change.
The moth is probably the most worthless creature in the game.
Please make snek not have cardboard box for head.
Ahh, also I forgot to mention. I was really really hoping Mammoths would get the smallest platform saddle in the months leading up to platform saddle releases, or some kind of hut saddle(like the tent). Even if it was smaller than 2 foundations. If you do add one, please make the platform a primitive looking wood rather than neat precise metal.