I like this a lot, but it has several problems. The backgrounds are not the best, and the trees and shrubs are a bit too pixellated. My biggest beef is with the Triceratops, though. The extensively filamented Tyrannosaurus I could understand, because it was 2017 when this was uploaded, and as erroneous it is today, it was considered accurate at the time so I don't blame you at all. Different popular consensus at the time. The Triceratops design, however, simply doesn't make sense, Triceratops did not have such extensive filaments on their bodies as far as we understand, nor did the other ceratopsians. Even the ones that do, namely Psittacosaurus, were almost entirely scaly, with the filaments being restricted on top of the tail in the form of bristles. We have various Triceratops skin impressions that show small reticular scales with larger nipple-like scales scattered throughout. That, along with its size and the type of climate it lived in, makes a full body covering of filaments not only unlikely, but also highly impractical. Even if you are a follower of the "ancestrally filamentous" theory it's kind of a stretch to assume that Triceratops needed a coat anymore. Same goes with Tyrannosaurus, but again Ignoring that glaring error, however, you did a great job with animation. It's smooth like butter, and the cinematography, while mostly limited to a 2D plane, looks pretty nice.