"We once crash landed on an ocean world for a year. When we came back to the confines of the Barge, I went... a little stir crazy. I had to find a project or tear the ship apart, and the latter seemed shortsighted." That being said, "I do like the end result, though. Thank you."

As for the question, she'll gather up her hair and turn her head to show the gills on the side of her neck. She can breathe underwater just fine, built for both environments.