The first three or four were especially confusing to me, I'm not sure what they are. What are all these Harry Potter objects?
(it's apparently from this article, though I couldn't view the page).
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From left to right:
Each object seems to represent a book/movie, going in chronological order from The Philosopher's Stone to The Deathly Hallows.
The creator of the gifs that your image is based on (Jessica Martinez) has stated on her website that the pictures are inspired and derived from artifacts from the seven Harry Potter books.
A set of animated minimalist fan art GIFs inspired by my favorite book series.
It may amuse you to learn that she also included a hidden lightning bolt in each picture to commemorate Harry's iconic scar.
First one is Philosopher's Stone, Then Tom Riddle's Diary, Then the Time Turner, Then the Goblet of Fire, Then the Sphere that told the fortune about Harry Potter Or the Remeberball, Then the Pensive, and the last is the Deathly Hollows Items, the Elder Wand the Invisible Cloak and the Resurrection Stone.