The £2m summer signing from Sevilla has impressed during pre-season and Luna said he can thrive in the Premier League.
"I feel I have the characteristics to play here," he said. "I think I have good athletic abilities - I am quick as a player and that is important in a division like the Premier League. But I believe it's good for me.
"Training has helped massively too, it is very intense and great fun.
"All the ball work is intense but it's really, really enjoyable. It's so, so fun. Football here in England is very quick, very rapid. It's a complicated league.
"For my own view, regarding my skills, it's great that this league is fast.
"I still need to adapt to things, of course, and feel I am all the time."