It's a good piece for a first one. Good subtle 3D style. Quick pacing didn't feel slow at any place. Suggestions: the title on the can to start - some different treatment to the text for better readability -
The lightning on the brain, maybe lightning hits and moves on the 3D surface (allowing the surface) - the sugar in the test tube, too regular. You could add random rotation at the start and increase Follow Rotation in the sugar grain's dynamic tag to force a more random final alignment.
I liked it.