Hi Mitch, you have developed a great initial development for your Greybox.
Your choice to make a consistent design across all scenes makes it really easy for the user to access. and minimize any confusion or navigation issues.
the choice of the colors appears to work together. and ties the beach them together Nicely, i would however look at changing the onclick of the button color or the text to make it clear to the user this is only minor and does not detract from the overall finish.
To develop the user experience, I would look at adding a few more features/assets to the scene as the water can be a little plane to look at and disengaging.
overall nice work keep it up.