Hey that’s cool !
there are funny stuff and things that work well, however there are also many “first animation’s” mistakes.
There is room for improvements, and many small things that can help getting it better, it’s hard to list them all. But you can still work some simple stuff to improve the final result.
About the edit :
As said , I found some shots a bit long, you can try to get rid at least of 30/40s (or add more well thought action) . It’s always a bit sad to cut some stuff, but it will help getting people watching the animation more into the story.
You can emphasis the goal of the characters (the jump), in various ways, the top shot at Scene 03 PreparandoSalto, can be divided in various shots. Try to see in some movies how they deals with that kind of sequences. The top shot is great, but you can add a narrow shot like if we shoot the face of the bottle (even if bottles don’t have face) .There are many camera tricks to emphasis the fear and the distance from the ground , that moment is important.
Also maybe we can see it before , at the beginning (after 1 or 2 shots) all the bottle look at the trashes so we understand from the start what all this movie is about.
About animation :
There are cool animations here, one things that bugs me much is the lack of volume preservation (squash and stretch) that’s a ‘simple’ thing to tweak to improve the animation. Timing isn’t always perfect, in some shots it’s nice other can be improved.
You can look at this video , I’m sure it will help you improve a lot of stuff in the animation and the framing :
Even if there are many small mistakes , it’s already working great, so every small improvements will just make it better and more pleasing to watch. Try to push it as much as you can and then show it to the world …
And last but not least, it should be “Le petit Paris” in french…