I've made a bunch of updates to Wear Camera Remote since the first release now. I've added basic support for turning the flash on/off and switching between front/rear camera. But I'm doing it differently than all those paid apps (e.g. Pixtocam) in that I want the UI to blend in well with Google's UI. Also small buttons on a smartwatch is awful to use.
More features to come in the future when I get time, stay tuned. Or if someone wants to help extend this vision, it *is* an open source GPL project.