#1. Top of hat red instead of green on right elf.
#2. Right elf has a missing eye.
#3. Green triangle instead of purple on hat of left elf.
#4. Missing button on keyboard.
#5. Left elf has a blue collar instead of green.
#6. Left elf has one finger more.
#7. Right elf has an extra line on his suit.
#8. Right elf has a missing circle on his boot.
#9. Left elf has an extra line on his boot.
#10. Left elf has different red-green pattern on his boot.
#11. Left elf has the number 6 in his ear.
#12. Right elf has a square instead of a circle on his boot.
#13. Left elf is missing his mouth.
#14. Right elf has one green leg instead of purple.
#15. The words "Merry Christmas" written on the computer screen (monitor).
