Here is a screen shot:
I think it is weird that the sun shines from behind the character. It casts a shadow on the character’s face which makes it look darker, also lights up the area around the character that gives more contrast so the character and the rest of the map (and UI) are also less visible.
I would rotate it around so the sun shines from behind the camera, making the character and the UI more visible.
But other than this, good job on the UI, it looks clear and professional!
It’s nice UI, but there seems to be too much light behind “Home” and “Race”
try Using the “Future” Lightning Tech.
You can just tweak the colour settings of it to make it more vibrant to your liking. Make the colours a little more full and darker and it’ll be perfect
I think you should make the lighting coming from the top right corner, it will add some interesting shadows and depth.