The satellite image looks slightly different from the Wikipedia image. In the satellite image you can clearly see an ear, and the man is looking to the left. In the wikipedia image, it seems as if the man is wearing a mask and looks to the right. The band over the head is not visible in the satellite image.

The satellite picture is much clearer; the 'mask' on Wikipedia is probably the hair of the satellite image.

With the "Measure Distance" tool on Google Maps, the figure seems to be 2.6 km tall.

From the article:

"The figure is 2.7 km (1.7 mi) tall with a perimeter of 28 km (17 mi), extending over an area of about 2.5 km2 (620 acres)"