The main menu is minimalistic and shows consistency in button placement and sizing. The UI elements are equally sized and provide a good feature overview. The user feedback when pressing the button is ideal for visual feedback.
The Scene Menu shows consistency again with buttons positioned in a functional order. (fe. Direction buttons are placed in the according direction)
This feature not only enhances proximity principles but also engages with the user on another stimulation level as the buttons are not only plainly labelled, they are also placed in the according position, where users would expect such elements.
Lastly the main menu buttons provide good user feedback by showing visual interaction (button pressed - colour change)
One thing that could be improved is the font color on the main menu buttons as it is not accessibility friendly with the green colour.
Overall the whole design is kept clear and consistent, as UI design should ideally be.