By me:

Vel
Reilly
Vel - Redone
Mei
Vel's Parents
Young Vel, CG'd
Vel Waterboarding
The "Kids" (Who Aren't Really Kids Anymore)
Mei Kareoke-ing
ISOF
Water Festival
Angela and Proto-Pet Pregame Concept
Lombax Stalkers!

By C-Puff Bohnen (E-mail,homepage):

Sprocket
Vel's Brother
Fanatic
Happy Sprocket

By cool_clank

Fan Weapon 1
Fan Weapon 2
Fan Weapon 3
Sketch 1
Sketch 2
Sketch 3

By MadXGirl (E-mail):

Lombax Sandy
Orion NEW!

By Joey (E-mail, homepage):

Albino Lombax