200 x 172 pixels, 12 colors.
Phew...this one took some time to finish.
Some refs where used as inspiration for the clouds.
Pixel Art Challenge: 8th Wonder:
In the year 2112 the Pacific hot-spot (that formed Hawaii) unexpectedly erupted cataclysmically; resulting in the world's largest caldera and most notable landmark - a gigantic rock-ring in the middle of the ocean. Almost a century later the location still displays majestic geological activity and electromagnetic phenomena.