You could change it if you want. I saw some really good realistic steampunk pictures when I looked for mine, so I wouldn't mind.
Corvo and Daud's are really the only ones that had powers that were shown much, and even if they had some in common there were differences too. Maybe the best option is to use the canon ones they had in common, then think of some unique too?
Posted something. I'm thinking her gang would have their headquarters at an active harbor/sea area, so I went with navy ranks. Should we write what their marks do, or would they have all powers to some extent/be able to learn?