Emoticon Scream for Halloween Fun Test - can you tell which is which?

Emoticon Scream for Halloween which belongs to Google, Twitter, Android, Apple, Facebook, or Microsoft? 

Hint: There are more than one image for some companies...

(Answers Below.)

A

B

C

D

E

F

G

Answers:
A: Android; B: Microsoft; C: Twitter; D: Apple; E:Apple; F: Twitter; G: Facebook