I'll be able to do this for you, Dreamer. First, do you think you could move that first character to another location and take another screenshot (Ficho would be perfect) since that background is very similar to the character's colors? Usually when they have the similar colors, it makes it more difficult to remove the background. If you cannot, no worries!
Did the 3rd picture, since it was the easiest one >w<
(http://i.imgur.com/AfS4vnH.png)
I can do the 2nd one if you like c:
PMed you the edited screenshots!