For the same school assignment as I did the skulls for I drew this sideview of a guinea pig.This one is specifically meant to be a sow (female guinea pig), but as guinea pig genetalia are not very obvious I gave a very stereotypical pin bow. I'm so sorry! xD The colour is pretty genuine too, it's beige (with dark red eyes!).

Drawn rather simply, it's meant to get the image across and not be majorly artsy or pretty. ;)

Art © me
If you really feel like using it I don't mind, but please give credit.