[Cubical]

Your user interface (GUI) is the first thing people will see and in my experience first impressions are everything. If the players will be looking at something constantly it shouldn't be hard to read or ugly. Look for inspirations from other games if needed but how the currently look is in no way visually appealing. Just an example your two shades of grey, while both being gray seem to visually conflict with each other. Maybe make the lighter one a bit darker especially if you are opting to use a white font.

Edit: i'm not bashing your work but the community has cried since the start about it's appearance and it doesn't seem that too much has changed. Also being able to change fonts is a nice option.