Blender eevees an odd duck.
On default the shadows are gray.
It works fine for indoor settings with white light.
But shadows actually have colors, they are usually the same color that the sky happens to be at the moment. On dreary cloudy days, gray shadows are perfect, on a sunny day with a blue sky it looks dreary. Darker blue shadows would fit that.
If you make the shadows the opposite temperature of the sky it looks unsettling to say the least. It's good for more abstract stylistic stuff.
To change the color of shadows simply change the color in the world environment tab.
The strength on that tab ,also makes a huge difference. If it's night time set the strength low if it's day time brighter.
I also noticed that their sun is completely white too, on Earth the Sun appears to be yellow.
But since this isn't Earth you could try all sorts of sun lamp colors. And see what sticks.
These may seem like minor nitpicks, but trust me they'll make your render pop! And look full of life.