The youngster started for the 3-1 win.
"It felt alright at the beginning. The pitch was a bit hard so it took me awhile to get into the game but I found it comfortable at the end, so it was alright," he said.
"There's always pressure when you're in big stadiums with all the fans there. I think the most pressure was the quick turnaround of the games. We're not used to that and just had to deal with it really."
On how the young players have been welcomed into the tour squad, Maitland-Niles added: "I think the first-team players have been brilliant with welcoming us. I'm really thankful that they've been like that. It's taken a lot of pressure off the boys and everyone's performed well I think."