It’s a decent design I feel like the options placed onto the home screen looks quite interesting but simplistic. However, a few things you could do to improve your design to look more eye catching.
If you look at other known games that feature similar designs as yours, you’ll see most of them feature scenes of the game normally what’s it going to look like I feel like you should add some sort of outline around the text or filling within the button, just to make it more appealing. You could even add a transparent gray image so when players navigate to the UI it’ll be something behind the text;
(For gathering small ideas) I would try using UI from games to get an overall approach on how you’re wanting yours to look like.
Few examples of UI styles and ideas to take along designing yours.