Looks like a child's mummified body to me. The wrists lie at about the same place mine do when I lay down, and I've got pretty short arms (not freakishly, but it is noticible if you're looking for it), so I have to believe that the "elongated arms" is an optical illusion caused be how thin they are due to the mummification.
The large eye sockets are probably partially illusory -- feel the bones around your eyes and compare that to how big your eyes appear, visually.
The other factor is that, IIRC, human eyes do not grow significantly from birth to adulthood, so they really are "disproportionately large" for an adult, but not a child. One of the main characteristics of baby animals is their large eyes. Whether it's children, puppy-dogs, or baby seals, immature critters have, relatively speaking, larger eyes than adults do.
I'm not an MD (not even remotely), but I don't see anything suggestive about the mummy in the picture.