As a leader, being reliable and responsible is important for your team. You stand a good chance in gaining the trust of your team if you show that you exercise caution, take calculated risks, and will hold to the organizational principles.

Adjusting to a new leadership role can take some time. After a while, we will become more comfortable, and we may stop paying attention to our reputations.

Keep up your guard, stay vigilant and seek regular feedback.

Charisma is useful for engaging and inspiring others.
However, unchecked charisma can lead to a reputation of self-absorption and self-promotion. 

The team may become concerned that you are more focused on your own concerns and ideas than on what's best for the group or org...

There is a degree of responsibility (and professionalism) that is expected from those in charge.
Trying to be the fun boss will harm your reputation eventually. It is good to keep some space between you and your team.