Playing around with the UI for @PlayRockburg and I'm having trouble transitioning away from "web app UI" design (which I've got lots of experience wi…

Playing around with the UI for @PlayRockburg and I'm having trouble transitioning away from "web app UI" design (which I've got lots of experience with) to "game UI" design (which I have exactly zero experience with).

Feedback? Resources I should look at? Books to read?