Complex sentence: He stated that the film's titular team would consist of the characters Star-Lord, Drax the Destroyer, Gamora, Groot, and Rocket Raccoon; while two pieces of concept art were displayed, one of Rocket Raccoon, and one featuring the full team.
Split into simpler sentences: He stated that the film's titular team would consist of the characters Star-Lord, Drax the Destroyer, Gamora, Groot, and Rocket Raccoon. Two pieces of concept art were also displayed, one of Rocket Raccoon, and one featuring the full team.