Hey Barsha,
Cool home page. However in terms of the buttons, if the rotate and expand could be a bit separate from the right and left, it would be easy to navigate as everything feels a little crammed up.
Also only right side of the screen is used for buttons, leaving the left side of the screen unused. More could be done in this regard.
The negative space for Move Left and Move Right looks good, however, using same size button for exit made the button have a lot of negative space which may not be too appealing for the eye.