The former Manchester United player had no doubt some of the talent Rangers faced in South-East Asia have the ability to play 'at a higher level'
Rangers recorded 5-0 wins over Sabah Select XI and Kelantan in Malaysia, before finishing their South-East Asian tour with the triumph over their Indonesian opposition, who Hughes labelled "excellent".
"I thought the standard of the opposition was excellent. Technically they were very good," Hughes told the club's website.
"They were able to deal with the football and were comfortable in possession. There's no doubt some of the players have the ability to play at a higher level."
He added: "The opposition were good and we're very pleased that we won, because that is a good habit to be in."
Hughes also said the South-East Asian tour had been "absolutely perfect" for his side as they ramp up their preparations for the upcoming Premier League season.
"It's been absolutely perfect. "We've been really pleased with the quality of games we've had, the preparation, and we've been dumbstruck by the whole welcome we've had here," he said.
"I would like to thank everyone on behalf of QPR for the welcome we have received both here in Indonesia and Malaysia. This is something that we'll take away with us."