Creating UI for mobile games has its own specific features that differs from the desktop application, like a keeping up a specific dimension. It's necessary to consider smartphone's displays gabarits. They have less space than desktop monitors.
According to design document game has a simple and modest style, so I try to keep this tendence in UI.
Moreover I afford to implement some grunge splash elements as a way to make an accent on important parts of the interface (game-mechanics point of view)