The day scene looks very nice. I really feel like the sun is shining! But I'm not sure why there are shadows in the top corners of the day scene?
The night scene is an interesting reflection of the day scene. But I feel like the streetlights are too dim in the night scene.
In my experience, streetlights are usually bright. The brightness would create very dark shadows and very bright areas on some plants, the bench, and the sidewalk. There would probably be some shadow to the left and right of the bird.
Unless the light bulbs are just turning on for the night scene or something else, the night scene doesn't look as good as it could be in my eyes.
That is the scene of animation, so It's moving picture. The shadows in the top corners is some kind of... view through a camera. The streetlights are dim in that picture, because if they are bright, the character will go out of sight. I understand what you mean, but I prefer minimal shadow in my work nowadays. Thanks.
I grew up watching this cartoon and my niece and nephew still love it today. Watching it as a grown-up, I especially noticed the lovable backgrounds! Do you plan to upload your graduation film somewhere when you've finished it? I'd love to watch it!