I was cruising sites in Polish (no, don’t ask) and came across a rather nifty animated archive of charming animals – this is a ram:
He has a rather splendid set of horns, cute feet, twisty tail and nicely formed muzzle (with a lower jaw you cannot see in the photo.
Happy with this as a first fold, there was some lovely precise rabbit ears (the main technique – odd – rabbit ears for a sheep, but in the end it all tastes like chicken), I do think I would mod it a little on subsequent attempts to round out the body.
You too can have a go: http://dev.origami.art.pl/show.php?id=31&format=SWF&dzial=FLA