Your menu scene has a nice background color, but the spacecraft theme isn't immediately visible. It's better if you can add a game title for clarity. It's hard to identify buttons and where to click for the navigation to an object scene and it may conclude with a bad user experience. Introducing hover effects could enhance user experience and interaction.
Moving to the object scene, the 'go to menu' button lacks visibility due to blending with the background. Could use a more contrasting color to the background for the recognition. It's nice that you have added some effects to maintain the consistency of the theme. It's a good used experience that you have used the same font for both scenes.