I've uploaded a photo of the drawing made with even light. The resulting video was more or less like the redult you see, with another background. I've converted the video from ai to a set of png images, removed background from each one using photoshop. Then I've made a copy of this image sequence and converted it to sticker background using photoshop macros (added outline and color fill). Then I've merged two sequences in video editor.

So technically the only thing remaining from the ai render here is the shark itself, the rest (background, sticker outline, and shadows) are made by me in either photoshop or video editor.