I feel like other parts of the illumination should change with the thunder, not just the statue shadows. Maybe bright skies/dark map.
Pretty cool otherwise :D
This looks really good! But I agree with calunio, a bit of extra lighting change could go a long way! Maybe have the map start dimmer and light up when the lightning strikes?
And there i thought it was simply a trick to show that those "columns" don't exist. I thought they would animate and try to kill us when we interact with the statues. xD
Now I feel stupid lol