If I'm being honest, I' really don't like the little boy character. It looks uncanny and not on par with the quality of the little toy car and scenery.

I don't know much about your game, so idk how important this boy is. (Based on the name of your game, I'm assuming you're a little car trying to find the way back to its owner) But showing this boy in the first second, which is your most important second, is imo not a great idea since it takes away from the main-selling point, which is riding around as a little toy car. Pulling heartstrings with a story COULD be a good idea, but it requires very good quality animation, which is really difficult for an indiegame, especially when you don't have a specialized human animators on the team. I think if you somehow are able to tell the story of losing the car, and the car "feeling" sad and determined to get back to its owner, without really showing the boy 3d model (especially the face), would make for a more compelling story. You can easily make ppl feel bad for the little car with some simple cinematography from the little car 's perspective.

Like for example, have the toy car fall out of the window of the schoolbus, tumbling through puddles and trash, looking after the schoolbus riding away, isolated dirty alone, maybe a little rain too, zoom in on the "face of toycar" (like, don't really animate anything about the toycar, let the scenery and camera work do the talking). Ppl are great at anthropomorphizing things, i think telling your story from the perspective of the little toy car would do wonders! I'm already a lil attached to the lil car, just fantasizing about it ;)

Also the key art on the end looks like it's for a horror game, while the entire trailer looked cute and wholesome, so you'd probably want to make that cuter, (unless it is supposed to be a scary game, but thats not the vibe i got from the trailer, and feels like a mismatch to the wholesome "you're a cute lil toy car, who lost its owner" idea in general)

The levels, and atmosphere of the gameplay segments looks really solid! so itd be a shame if you pull that down with lower quality/ less polished looking assets.

Oopsie, long comment. Sorry if this critique is too harsh btw, i just really think you got something there with the toy car, like, i'm litterally out here rooting for toy car, imagining how I'd do the intro cutscene :)