Lyn- .....ummmm, not sure. Help?
Lyn's still a bit too green to categorize her sins, but I'd say that she would fall under the realms of either Lust (Wonderlust mostly, but her desire to stick close to others tends to put her into danger, not helped by those who oblige her) or Gluttony (Similar to lust in that Lyn is a curious little snake-monkey, but she may be biting off more than she can chew). Of course she hasn't exactly shown any blatantly negative things yet, though there's always time in the future.
Additionally, in counter-comparison to Rtron's survey about sins, what would you think be one of your character's Virtues?
Charity - The willingness to give to others, regardless of your own personal wealth or fortune. Could be anything from giving money to giving company.
Chasity - Like lust, this isn't always a sexual thing. Rather the fulfillment of the virtue is not through lack of being tempted, but rather of making the conscious decision to better yourself rather than do what you know is morally wrong. Or at least pointlessly harmful.
Diligence - Determination despite the odds and issues set before you. Never backing down, never giving in, and always sticking to your beliefs. Faith, in other words.
Humility - Being modest to one's self. This isn't the sort of self-destructive or hypocritical humble-brag of "Oh, what I did wasn't that impressive..." sort of Humility, but the kind that would do good and say nothing about it. There's no need to announce your good deeds, for you know what you did was good, and need no recognition for it.
Kindness - Being good towards all and everyone. From strangers to friends even to enemies. To give and befriend others for the sake of it, rather than as a means to an end. To understand and trust others without prejudice or regret.
Patience - To be merciful and forgiving. Even when the going gets tough, you stay on your path, accept that there are faults in the world, and continue to travel the high road. The "Turn the other cheek" virtue.
Temperance - Close to Chasity in that this is the virtue of controlling yourself in the face of adversity and temptation. But it also means to to be self-disciplined and restraint. You take only what you need or are given, you don't go into extremes, and you are always aware of your actions and what they truly mean.