SHAUN Williams has enjoyed making the step up to the Championship but says Millwall fans are yet to see the best of him.
Williams has impressed for the Lions since making his £250,000-move from MK Dons and came second in the club's player of the month poll for February.
The 27-year-old has vowed to keep improving and believes playing more games with new midfield partner Ed Upson will help him get better.
He said: "I'm really enjoying playing with Ed. He is my type of player because he likes to get the ball down and pass it.
"I think we have a good understanding already and it's only going to get stronger the more games play together.
"I've found the step up to the Championship okay but I still know I can do a lot more.
"The first couple of weeks have been enjoyable and disappointing at the same time for me. I am enjoying the challenge of playing in this division, and I believe I'll only get better."
Millwall now face a daunting trip to third-placed Derby County after back-to-back defeats, but Williams says performances have been improving in recent weeks.
"Our defensive shape looks a lot stronger and we are conceding less goals than we were, but it's been a bit frustrating in front of goal," he said.
"I think we need a bit of luck really and the boys need a bit of confidence too. I'm certain that if we get the rub of the green, we'll start banging them in.
"There are 39 points left to play for and we have still got to play a few of the teams around us at home.
"We have got Derby next and they are in a good run of form, and obviously we are at the opposite end of the table, but we need to enjoy the game and focus on creating chances.
"We have been improving as a team over the last couple of weeks. Derby like to play fluid football and that might open up a few gaps for us to exploit."