uploading problem with pixelation

the quality of the photos at the end of the film got very pixelated when i uploaded it and i don't know why.

my final video

This is my final video, I think this video is very clear to follow. I sped up the video by 800% to add a nice effect and then the still photography at the end to show my photography skills. I am very happy with the end result.

1st attempt at my video

The stop motion didn't work because of the glare from the sun against the window screen and the video isn't very clear of what is happening and cant really follow the roads. So i decided to make a video of the journey instead.

few of my images that i did for my photoshoot at the end of my film.

few of the still images of my 1st attempt video. the journey

i have decided to make a movie camera film. These are some of the videos that i really liked. The thought of the video moving rather than the object that is being filmed. I thought these videos would inspire me because it is exactly what i am looking for but i am going to put some photography stills and incorporate them. My idea is to actual video a photo shoot of my car and the journey i take to accomplish this.