The female martial artist Zangoose and her rival, the male Seviper, are from Nintendo's Pokemon Chamo-Chamo Pretty and this screenshot's taken from Valve's Garry's Mod.
Inspiration: Warner Bros.'s Mortal Kombat 1 Fight Intro Dialogues.

ZANGOOSE: I wonder how our species' rivalries started in the first place...
SEVIPER: An interesting question, my dear. But, first, let us begin, shall we?

SEVIPER: I say, martial artist, you're here for our usual battles, eh?
ZANGOOSE: You got that right, dude. Here I come!