This cool canvas art displays the evolution of The Avengers throughout the years. These logos are taken from the first three Avengers movies.
The first logo is from the very first Avengers movie which was released in 2012, which introduced all primary characters of The Avengers, Loki was the Villian of this movie. The second logo is from Avengers: Age of Ultron which released in 2015, this is supposed to be the second installment of the Avengers movie series, Ultron is the big bad of this movie. Third logo is from Avengers: Infinity war which released in 2018. this was the third movie of this series. The Mad Titan Thanos is the villain of this movie.