It was Seven and she was with Chakotay, and she has her first experience of laughter.
The brown costume is a thicker, stronger fabric.
However, Seven grows to accept her past as a part of the Borg and look ahead into her future.
He's more human and flawed, where the original Sherlock was almost cartoonishly strong at times, but he still has the same confident eccentric brilliance that makes Sherlock Holmes so interesting.
This results in the creation of One, a Borg with 29th-century technology, whom Seven helps adjust to life on board Voyager.
That was a huge concern for me when I signed on initially.