Ronaldo picked up the Pichichi award for scoring the most league goals in the Spanish top flight last term after besting the previously unbeaten mark of 38 goals set by Telmo Zarra and Hugo Sanchez.
It was an amazing personal achievement but the Portugal international insists that with the quality of players around him at the Bernabeu, his game still has room for improvement.
"My ambition is always to improve every year and I'm at a club that guarantees that," he told the club's website.
"We have the best in the world on this squad. That makes me happy and helps me be better.
"I think all football professionals are talented, but you'll never become a great player if you don't work on that talent. I always try to do that. I try to prove my quality on the pitch in games and training sessions. I always try to do things well."
Ronaldo revealed that he "didn't have any particular idols as a child".
"My ambition was to play for my national team because that's where the footballers I mostly followed played. I'm sure I used to do stuff I no longer do due to age or experience. I'm always ready to learn and I always try to improve," he said.
Meanwhile, Barcelona striker Lionel Messi has played down his personal battle with Ronaldo, insisting winning titles is the only thing that interests him.
Messi and Ronaldo are widely considered to be the best two players in the world at the moment, with the pair battling it out for the Pichichi over the past two seasons.