To make the emotes go to your FH folder and scroll down until you see a file called "emotes" open it in notepad.
#Smile,Sulk
#FrownL,BrowRaiseL
#FrownR,BrowRaiseR
#SquintL
#SquintR
#ShowTongue,TongueUp
#ShowTeeth,LipShrink
#JawOpen
#EarPerkL,EarDroopL
#EarPerkR,EarDroopR
#Eyelids,EyelidL,EyelidR
These are everything you can make your character do. Like the other emotes type one of them down and type in a number. The bigger the number the more your character does the action thing. Im not sure wat the limit is though.
Making eyes is the same as making a preset's body, head, tail etc. You can use GIMP but photoshop works also with it, im not sure wat other programs work too though. Bringing it onto the game, well same thing with the head and body stuff.